How to restore windows 7 if it does not start. The computer turns on, but the operating system is not launched: possible causes and ways to solve the problem

We will correct errors in Windows 10. But about the same it will be necessary to do both in Windows XP, 7 and 8. In Windows 7 and later releases, developers have improved the recovery system after problems with the launch. In the old versions of the system, serious errors more often have to solve reinstalling.

Disconnect peripheral devices

Try to remember which changes you have recently been introduced into the system: whether new, devices were installed or switched. Perhaps the problem is in one of the hardware components. Try to turn off:

USB drives.
Cardriders.
Printers.
Scanners.
Cameras.
All other external devices.

If it does not help, disconnect the keyboard and mouse: you need to exclude all possible sources of malfunction.

Also the cause can be internal components, for example, operational memory. In the desktop PC, you can check the performance of the RAM, connecting the planks alternately.

Check power

If the computer does not turn on at all, pay attention to the power cable and sockets. Do not forget about the power switch on the back of the desktop housing.

If everything works on this level, but the computer does not all turn on, then, most likely, the problem in the power supply that you can hardly fix it yourself: you have to replace or repair from a specialist.

A variant is possible when the computer turns on, but only for a short time. This is the same problem with the power supply.

Adjust the system to download the system

When starting, errors may appear: An Operating System Wasn't Found. Try DisconNecting Any Drives That Don't Contain An Operating System. Press Ctrl + Alt + Del to Restart or BOOT FAILURE. Reboot and Select Proper Boot Device or Insert Boot Media in Selected Boot Device.

IN bIOS settings Or the UEFI can be downloaded from an external device or other logical partition, and not from the system disk. You can restore the default parameters like this:

To restart a computer.
Immediately after restarting, press the system key, for example F2. This may be the other key: Usually, during the loading system, it can be found at the bottom of the screen with the logo of the laptop manufacturer or motherboard.
In the settings, set the desired disc to the first place in the download.
Select "Save and Exit" (Save and Exit) to save changes.

If the described above did not help, you will have to restore the system loader. This will require a bootable flash drive or a recovery disk with a suitable system. How to do blood flash drive or disc, read in Lifehaker about windows installation.

Run the system from a flash drive or disk by selecting the desired option in the download menu. In the Windows Setup menu that opens, select "System Restore".

In the Recovery menu, select "Troubleshooting" → "Advanced Parameters" → "Recovery when loading". After that, the system will try to automatically correct the bootloader. In most cases, it solves the problem.

You can do the same manually through the command line, but it is better to choose an automatic option so as not to aggravate the situation.

If this method does not help, it is likely that the problem lies in the hardware: a hard disk is damaged.

In the recovery menu, select "Troubleshooting" → "Advanced Parameters" → " Command line».

In the command prompt, you need to enter alternately commands: diskpart → List Volume (Be sure to memorize the name of the disk from Windows) → EXIT.

To check the disk on errors and damage, enter the CKDSK X: / R command (where x is the name of the disk with Windows). Check usually lasts long enough, have to wait.

Run Windows in safe mode

Due to the sudden disconnection of the computer during the installation of operating system updates, cleaning viruses and unnecessary records in the registry or the fault of the utility to accelerate windows work System files may be damaged. In this case, when loading the system, the "blue screen of death" will appear.

Try running Windows in safe mode Without loading drivers and programs in autorun. If in this mode, the computer works, you will have to delete drivers, perform system rollback and scan to viruses.

In the presence of recovery points, this problem is solved simply enough. You just need to roll back to the previous stable configuration.

Reinstall system files

The actions described above may not help. Then you have to lose windows settings and reinstall the system while saving files. Unfortunately, all programs will need to be renovated.

In the recovery environment, select "Troubleshoot" → "Reset Settings" (RESET THIS PC) → "Save My Files" (Keep My Files) → "Reset" (Reset).

The system will roll back to initial settings.

It is not always going to determine the cause of a particular problem in the computer. This also applies to situations when Windows is not loaded 7. Even if such a problem arose, then you should not despair. To start, view the code or description of the error, and then try one of the proposed correction options.

Possible problems

In fact, errors that do not give the system to boot, a lot. All of them can be divided into two groups. The first includes those in which it is possible to start a secure mode or an option to restore the previous configuration. And the second group includes problems in which the PC does not go on the boot screen.

The variants of their corrections are different. In the first case, it is enough to log in to the system under the backup or main user in safe mode, to remove an extra element or perform recovery. Secondly, the BIOS setting is required or rollback from using Live. CD. We will deal with those problems that are most often found.

Option 1: A backup login is possible.

To begin with, it is necessary to check whether the backup login is possible when Windows does not start. To do this, when you turn on the computer, you need to enter the download mode selection menu. It will open automatically if you restart the PC several times.

Control is made by arrows on the keyboard. Select, and then press ENTER. If the action helped, then the failure will not happen in the future, the computer will continue to be stable. Otherwise - activate the option "Safe mode"After that, run the rollback procedure according to the first method of our article :.

If you briefly, open the menu "Start"Click on the search bar, enter "Restoration" And run the second element from above.
After that follow the instructions on the screen. At the end, reboot PC.

Note: In the selection menu, the mouse should not work. But there may be problems and with the functioning of the keyboard. The fact is that the drivers forUSB devices are loaded at subsequent launch stages. In this case, the solution will be connecting the keyboard withPS / 2 connector. You can still take advantage of a special adapter, they are very cheap.

Option 2: Disk Boot Failure Error

Why does Windows be launched 7 with Disk Boot Failure error? The essence of this failure is that the computer does not see the boot files on the specified media. This may be due to violation boot Priority. (Loading device), as well as with damage to important data.

In any case, first you need to go to the BIOS. To do this, when you start a computer, press the Delete or F2 key repeatedly. If it does not help, then look at the text on the title image when the PC is turned on. We need item ENTERSetup.. Next to it specified a specific key, click it.

BIOS versions may vary depending on the motherboard model, as well as firmware. First, find item Boot.. It is located either on the main screen, or in the section AdvancedSettings. IN BootPriority. In the first place should be HDD or SSD.
If it is not, then change the order of download to the desired one. The location of the rest of the role elements does not play.

What to do in the case when everything is set correctly, but the error still occurs. Unfortunately, in this situation, the problem is related to the damage to system data. First, try the recovery of Windows 7. Does not help - go to the last article.

Option 3: BootMGR IS Missing Error

Option 4: Other problems

If none of the listed options is suitable for solving your problem, the recovery system is not amenable. In this case, its full reinstallation is required. But, most often, important data on users are stored, which would not like to lose. Therefore, they should be reserved.

Such services always have computer masters, but not always there is a time or opportunity for their visits. All actions can be performed independently, but the second computer or laptop will be required, which is in working condition.

The essence of the method is to load through Live CD. At the same time, the PC starts not with hard diskwhere the system is damaged, and with removable media with an emergency manner installed 7.

From the official website of Microsoft Live CD not to download, so look for it on third-party resources. The recording procedure is no different from others. It is preferable to use Ultraiso.
When you enter the system under the "Live", transfer all the data to any removable media, after which reinstall Windows 7.

A collision with an error of the type "Operating system is not found" during the download of the computer can cause a nervous shock. But, if you have 7 installed, you have nothing to be afraid. After all, such download errors often can be solved with just a few simple actions.

In many cases, the inability to download Windows 7 can be associated simply with incorrectly installed boot order in the BIOS. This can happen if more than one hard disk is installed in your computer. Usually, the input to the BIOS is carried out after a few seconds after turning on the computer using the button press Delete. Or by pressing the special function key. Entering the BIOS, make sure your hard disk with Windows 7 is on the right place in the download queue. If you do not know where to watch, read the instructions for your motherboard.

Another possible reason for no Windows computer detection during the download is a hardware problem. If the BIOS cannot detect your system disk, make sure that all cables are connected to it normally. If yours hDD It makes a strange sound, like clicks and tapping, then it may be broken. And, finally, it is possible that your hard disk has problems damaged data, which affected important system data, such as the main boot record - Master Boot Record (MBR).

If you suspect a breakdown of your disc, it would be nice to make a backup copy of important data, scan it on errors from another computer and even consider the possibility of purchasing a disk replacement. Attempts to correct the download problem on damaged disk Can lead to data loss, so reserve your data before you start to take something.

MBR and other important boot data may also be damaged by attempts to install earlier versions of Windows in addition to Windows 7 (like Windows XP) or third programs, like viruses. In the case of a virus, to any "corrective" actions, it is recommended to check the disk using the antivirus program. Otherwise, attempts to correct the disc with the virus can lead to data loss.

Also, the appearance of reference data damage messages can be caused by the incorrect job of the active partition of the disk, which can come from an overly inquisitive Windows user with administrative rights.

Correcting MBR and other download problems Windows 7 is most quickly carried out using the installation DVD with Windows 7. But if you do not have such a disk, then you can use the Windows 7 system recovery disk as an alternative, whose creation process we will show you below.

If you do not have a fixed DVD, nor the recovery disk, then bring yourself much benefit by creating a recovery disk right now, in order to avoid excess headaches in the future.

Master Boot Record Correction (MBR)

Step one: Turn on your computer by booting either from the Windows 7 installation DVD, or from the Windows 7 system recovery disk. Remember that you may have to change the load order to the BIOS to load the DVD.

Step two: When booting from your installation disk or from the recovery disk you may be asked to choose a language. Select it and then continue the download. When using the installation DVD when the query below appears (or similar to another), select Repair Your Computer Repair Your Computer.

Step Three: For some time, the computer will go to search on installed Windows, after which you will be provided with a list of possible Windows recoverable. Select the appropriate installation and continue. If the case of the case will be detected in one of your Windows installations at this initial stage, then the system can ask you if you want it automatically corrected it. Here you can decide yourself - will the system fix yourself or not? If you do not want an automatic fix, then just select "No" (NO).

Step four: Reaching the settings screen system recovery (System Recovery Options) what is shown below, you will encounter a selection list that can help you in restoring your damaged Windows 7

If you wish, you may first try the startup repair option (Startup Repair), which in automatic mode often solves many download problems. However, in this article we will use the Command Prompt Prompt option to solve your problems manually. Therefore, to continue click on Command Prompt.

Pitch Fifth: Being on the command prompt, enter the following command and press ENTER:

In the case of its successful execution, you will see the appropriate welcoming message, the "Operation Completed SuccessFully" type. This is what you need! Your MBR has been restored!

Despite the fact that the above team corrects the MBR (and sometimes enough of this), an error with the boot sector can still remain system partition And with download configuration data - Boot Configuration Data (BCD). This may occur if you tried to install in addition to Windows 7, another operating system, like Windows XP. To write a new boot sector, try the following command:

If your Windows 7 is still not yet detected when the computer is loaded, or you want to include a more than one operating system in the system loading list, try the following command to restructure your BCD:

bootRec.exe / RebuildBCD.

The above command scan all your discs for other operating systems compatible with Windows 7 and allow you to add them to the system load list. If it does not work, you may need to reserve your old folder BCD and creating a new command using the following commands:

bCDEDIT / EXPORT C: \\ BCD_BACKUP
C:
CD Boot
ATTRIB BCD -S -H -R
REN C: \\ BOOT \\ BCD BCD.OLD
BootRec / RebuildBCD.

Some users simply delete the old boot folder and try using the above steps to solve their download problems. But it is not recommended to do so.

How to change active sections

After the intentional changing of the active partition on our system disk during system boot, we encountered BootMGR Loss Error (Bootmgr Is Missing), which did not allow us to download Windows. This is a normal error that occurs when you start to "play" with partitions on the system disk. And its decision can cause a serious headache if it is not prepared in advance.

Use your disk to change active partition windows restoration 7 or installation DVD and follow the steps below.

Step one: Follow the steps of the above description (from the first to the fourth). This should lead you to the command line of the Windows Recovery Environment.

Step two: Enter diskpart and then press ENTER.

Step Three: Enter List DISK and press ENTER. This command will display a list of all discs connected to your computer and assign them the numbers.

Step four: Enter the SELECT DISK X, where X is the disk number containing the partition you want to make active. Press ENTER.

Pitch Fifth: Enter List Partition and press ENTER. This will allow you to see a list of sections on the selected disk. Determine what section you want to make active.

Step Six: Enter Select Partition X, where X is the section number that you want to make active. Press ENTER.

Step seventh: Now simply enter Active and press ENTER. This command will make the selected section you selected.

How to create Windows 7 system recovery disk

Windows 7 makes it easy to create your own system recovery disk, if, of course, operating system You have already installed and works.

Step one: Click on the Start button -\u003e Programs-\u003e Maintenance -\u003e Create a system recovery disk.

Step two: Insert the clean CD or DVD into your optical drive.

Step Three: Click on the disk button and allow the program to make your job.

What you need! The program must be recorded on the disk only 140-160MB data (depending on the type of operating system), which should take only a few minutes. If you do not have a CD / DVD-R optical drive that you could use to create a recovery disk (and for later use), you can download yourself an ISO image with a Windows 7 system recovery disk and then use it to create it. Boot USB flash drive.

How to create a bootable USB flash drive with Windows 7 system recovery disk

Step one: Download the Windows 7 system recovery disk image ().

To download, you will need a client for torrents, such as. Alternatively (if you have a DVD drive), you can use the Windows 7 installation disk or Windows 7 system recovery disk. In this case, you should go immediately to the seventh step.

By the way, using the installation disk with Windows 7 at the seventh step you can not only restore the system, but also install Windows 7 from a USB drive, which is very useful if you are a user of a netbook.

Step two: Open the command prompt with administrator rights. To do this click on the Start button -\u003e Programs -\u003e Standard -\u003e Right click on the command line and select Start on behalf of the administrator.

Step Three: Confirming all UAC requests, you must be on the command line. Make sure your USB flash drive is connected to a computer, then type DiskPart and press ENTER.

Step four: Enter List DISK and press ENTER. Determine which number matches your USB flash drive. In our case, the USB flash drive corresponds to Disk 1. We defined it on the container of the flash drive, which we have 2GB.

Pitch Fifth: Enter the commands below by changing the disk number on your own. Warning - executing the commands below to erase all data on your USB flash drive or on your chosen disk.

SELECT DISK 1.
Clean.
CREATE PARTITION PRIMARY.
SELECT PARTITION 1.
Active.
Format FS \u003d NTFS

Step Six: After DiskPart successfully format your USB flash drive (which can take a few minutes), you need to enter the following commands:

Step seventh: Now you need to copy the contents of the ISO image downloaded (or DVD) to your USB flash drive. This is just a pair of folders and file. To extract files from the ISO image, you need some program, like.

Step eighth: Now that the files are copied, you need to make your USB flash drive boot. To do this, you need to download a small file. This file can also be found in the Windows 7 installation disk boot directory. After downloading, place the bootsect.exe in the root folder of your USB flash drive.

Step ninth: Returning to the command line, you need to change the current directory on the root directory of the USB flash drive. In our case, Flashke corresponds to the letter E, so we will use the following commands:

e:
BootSect / NT60 E:

The BootSect command will add a compatible boot code to the specified volume. If everything goes well, then you will get a bootable, restoring USB flash drive. True, when used it is not necessary to forget that it must be specified in the BIOS download list.

Many users of computers and laptops probably faced problems when loading Windows 7.. The operating system tritely refused to load and issued an error. In such cases, it is impossible to even enter Safe mode by F8..

The first thing that comes to mind in such situations is to reinstall the Windows itself. The procedure is simple and well described in the manuals:, installing Windows 7 and many others.

The problem with the loading system will decide, but I don't want to lose documents, programs, I don't want to configure everything again, installing drivers and applications, as well as their setting can take a long time.

Comment:this manual does not consider hardware problems such as problems with the inclusion of the laptop itself, the problems with the image and so on.

Fortunately, the problem with the loading system can be solved easier. Usually, the causes of the system loading are damaged damage WindowsViolation of work MBR. To restore the system, you need to restore this most bootloader and MBR. How to do it will be described below.

Restore normal Windows loading

MBR and boot recovery process Windows 7. almost completely identical to Windows Vista.. This means that the recommendations described below can be safely applied to restore Windows Vista. .

Let's start. First of all, we need a boot disk or flash drive with a distribution Windows 7.. How to prepare them in detail described in the manuals: installing Windows 7 with USB flash drives on a laptop, netbook or regular PC

Now it is worth choosing the item System Restore down below:

You will then start searching for installed Windows copies on hard disk:

As a result, the master must find the installed Windows 7.. Choose it and click Further:

The Windows Recovery menu should appear:

Consider for what each item:

Launch restoration - Restoring Windows bootloader and system files
System Restore - Restoring the system from recovery points. Recovery points are created automatically with important, installation of system updates, and can be manually created by the user.
Restoring the image image - Windows restoration from disk image
Windows Memory Diagnostic Tool - Check random access memory For errors. Pretty useful thing.
Command line - Command line for manual recovery

Interest for us is the first two points, as well as the last. First consider Launch restoration. This is the easiest way to restore the normal system load. Run it. Diagnostics should be launched:

After some time, the problem will (or not) fixed:

Consider now the second menu item - System Restore. Let's try to restore the system from recovery points. For this, launch System Restore:

Now choose the last point of recovery and click Further:

Click on Ready With Agree with warnings:

Restart a laptop or computer.

Turning off the PC from the mains for 5-10 seconds: Disable the power supply and pull out network cablealso de-energize the block uninterrupted powerIf such is connected, and in the case of a laptop - remove the battery.

Disconnect external equipment: mouse, keyboard, printer, removable discsModules wireless communication etc. If the cause of the operation failure lies in external devices, the alternate connection of each of them will help calculate the culprit.

P.S. Not always, the problem can be solved in the ways described above, therefore, you will have to start an error message to analyze the error message that appears during the PC start and search for alternative options.

Windows 7 does not upload

The message with the text "Bootmgr Is Missing" suggests that the Windows 7 operating system loader is damaged or missing. To solve this problem, you will need a Windows 7 installation disk or a disk with ERD Commander (32bit or 64bit, corresponding to your OS), which can be found in. In the "Boot Device Priority" section of the BIOS settings, assign the first CD / DVD drive device. Then boot from the Windows installation disk and select the "System Restore" menu. From the list of installed operating systems (if you have several of them), you should select the desired and click the "Next" button. In the "System Recovery Settings" window that appears, there are two items - "Restore System Start" and "Command Line", they will need you. The first option will automatically eliminate the problem with the start of the operating system, and in the case of its failure will have to contact the second. In the command prompt, type "bootrec / rebuildbcd", press "ENTER" and agree to make changes to the download configuration data, alternately by pressing the "Y" and "Enter" keys. After that, it remains only to create a new boot sector using the BootRec / FixVoot console command and restart the computer.

Compressed sections

As a result of the erroneous compression of the section with Windows 7 boot files, the message "BootMGR IS Compressed" may appear. The driver of the NTFS.SYS file system, which is responsible for working with compressed disk partitions, begins to act much later bootmgr.exe bootloader. In this case, you will have to refer to the help of the Windows 7 installation disk, at the command line of which you need to successively run a number of commands:

eXPAND BOOTMGR TEMP.
aTTRIB BOOTMGR -S -G -H
del Bootmgr.
ren Temp Bootmgr.
aTTRIB BOOTMGR -A + S + R + H
bootRec / FixBoot

Windows XP is not loaded

The NTLDR IS Missing Error speaks of damage or absence of the NTLDR file, which is the Windows XP bootloader. Unlike BootMGR in Windows 7 stored in a separate hidden sectionThe NTLDR file is on one disk with the operating system. It happens that inexperienced users make mistaken system files with unknown names for malicious programs And without a doubt remove them. Such a fate often comprehends anything that is not the obedient NTLDR, as well as one more critically important for the successful OS file - Ntdetect.com. To solve the problem, the Windows XP installation disk will be required. At the very beginning of the process of its download, you must press the "F10" key to get into the recovery console. With it, you need to go to the Windows installation disk, using the "X:" command, where the x-letter of the corresponding optical drive. Then it remains only to be copied to the Winchester section with two missing files by following commands:

sulat i386 \\ Ntldr with:
i386 \\ Ntdetectcom C:

This method is also effective in the case of loss of any other system files, copies of which can be found on Windows 7 installations and XP, respectively. An error "NTLDR IS Compressed" rarely appears, since it is simply subject to computers with Windows XP without SP2 update package. It may arise in those cases when at the root of the disk with: too many files are stored. A similar problem with the compression of the NTLDR loader is solved in the same way as if it is damaged or deleted - by copying original file. From the installation disk Windows XP.

No boot device found

Error message that appeared "No BooTable Device" and its numerous vaitations ("Boot Device nOT FOUND.", INVALID BOOT DEVICE," NON SYSTEM DISK OR DISK EGGR ", etc.) indicate that the computer did not even start running the operating system, since it does not see the boot sector or even a hard disk. To understand where the problem lies - on a software or hardware level, it is enough to go to the already familiar section "BOOT DEVICE PRIORITY" of the BIOS settings. If the hard disk does not prove among the proposed options, it means that the problem is related to the equipment. Perhaps the SATA or IDE cable or hard disk power cable, or HDD failed. If the computer normally recognizes the hard disk, the reason is programmed and lies in the main boot record (MBR) - either damaged or absent. Unlike the above-mentioned corrections, this situation is relevant simultaneously for Windows 7 and XP. After booting from the installation disk, run in the recovery console command: "BOOTHES / FIXMBR" (for Windows 7) or "FixMBr" (for Windows XP).

Driver error

Windows critical error messages that are called "blue death screens" (clue screen of death), are quite common problems in Windows XP, but in Windows 7 tried to make a system more reliable in this regard. Cause Bsod. There may be incorrectly working equipment, for example, RAM. Most often, the VSD messages at the early stages of the download appear after updating the device drivers and contain the text "driyer_irql_not_ less_or_equal" along with the file name with the SYS extension. To delete problem driver via "Device Manager", you can try to start Windows in safe modeSince it uses a minimum set of drivers. To do this, you need to press the "F8" key during the boot and select the "Safe Mode" item. If when downloading in the safe mode "Blue Death Screen" still appears, it is necessary to return to the previous version of the driver with which there were no problems. You can do this using the recovery point if it was created earlier. In Windows 7, it is necessary to press the "F8" key during the boot of the OS and select "Troubleshooting a computer" in the menu that appears. After that, you will get into exactly the same menu of "Recovery Settings", as well as when using the Windows installation disk. Next, the "Restore System" item in which you can choose one of the available points to roll back.

Damaged loader file

Error type "Windows Could Not Start Because The Following File Is Missing Or Corrupt: Windows \\ System32 \\ file name.dll" is characterized only by the Windows CP operating system. It can be caused by damage or absence configuration file booting boot.ini, which does not apply in the new version of the OS. You can solve the problem with the BootCFG / Rebuild command in the Windows XP Recovery Console, which will adjust existing or create new file. Boot.ini. The absence of other files in the system, primarily drivers with the SYS extension, and in Windows 7, and in XP. Most effective method Solve the problem - return the file to the place, searching for its copy on the Windows installation disk by borrowing it on another computer with the same version of the OS or search the file by typing his name in any online search engine. If there is no second PC at hand, then the search, download and copy files will require a LiveCD with an OS that does not require installation. One of the most convenient options is. The exceptions are the System, Software, SAM, Security and Default system registry files, which are stored in the C: \\ Windows \\ System32 \\ Config folder. Replace them with copies from another computer will not work, so the only option remains a rollback to the recovery point. In Windows XP, for this you need to first download the operating system at least with standard registry branches, and after that, start the OS regeneration process. To do this, go to Windows XP Recovery Console, as described above, and run a number of commands (take the System registry file as an example):

mD TMP.
spau C: \\ Windows \\ System32 \\ Config \\ System C: \\
windows \\ TMP \\ System.bak
dELETE C: \\ Windows \\ System32 \\ Config \\ System
shed C: \\ Windows \\ Repair \\ System C: \\ Windows \\
system32 \\ Config \\ System

Utilities for diagnosis and repair

The cause of many problems with Windows loading may be damaged sector hard Disc (Badblocks). Check the hard disk will help the MHDD program, which runs from the disk (image can be downloaded by reference). In the program menu, you must select the hard disk number from the list and start the scanning of the sectors for errors and correctly - "Remap | ON. " Badblocks (broken blocks) are usually concentrated at the beginning of a hard disk, so it is necessary to move the partition from the space area away from the problem zone. For this suitable boot disk With the editor of the sections of the Minitool Partition Wizard not. (Select "Partition 1 Move / Resize" in the program menu). BSOD may be associated with RAM. RAM module test allows free app

There are at least three common errors that lead to problems with downloading Windows 7. Systems If errors occur to the monitor screen displays a short message in which it indicates a problem. It is these small instructions that we will be guided by solving problems that have arisen.

Perhaps the most popular error - Disk Boot Failure, Insert System Disk and Press Enter

It is characterized by the following situation: you turn on the computer, but instead of the usual boot of the Windows 7 operating system, this inscription is displayed. It means that the system recognized the disk from which it starts not systemic, that is, according to Windows, there are 7 system files needed to start it on this disk. It is caused by this may be different reasons. We will analyze the most common.

Possible variant. The DVD-ROM inserted a disk or a flash drive and a flash drive and your BIOS is configured so that by default sets the launch of one of these media. As a result, the system cannot find the files you need to run on the flash drive or DVD disk and reports an error.

Elimination. You should try to disable absolutely all external drives: phones, memory cards, flash drives and external discs. After that, there is a computer to turn on again. Most likely that the system is started this time correctly.

It may be that the recommendations provided above will not help. In this case, you need, firstly, in the BIOS settings, set your system disk to the default launch device. And secondly, you should make sure whether your system disk determines the BIOS in general. It may be that he failed.

If the system correctly displays the system disk, in your power to use. This we will touch on a little later, at the end of the article.

If the system does not display your main hard drive, you can try to disconnect it and connect back, or into the nest next door if it is present.

Also lead to this error can also have other problems, for example, viruses, etc. In any case, it is best to begin to check those methods that we mentioned. Most likely they will work. If not, I feel boldly asking the end of the article in which we indicated step-by-step troubleshooting of Windows 7 with the utility.

Boot Bootmgrr is Missing

In connection with this error, you will also not be able to correctly run Windows 7 - a message on the black screen - bootmgr is missing. Calls can also cause different reasons, including all sorts of viruses. It can be caused by erroneous actions of an inexperienced user who accidentally changed the hard disk boot record. Also, the physical problems of HDD are often the cause of this error.

Elimination. Check if the hard disk itself is working on which the system is installed. To contact your Windows 7 recovery environment, which is slightly lower.

NTLDR IS Missing Error. Press Ctrl + Alt + Del to Restart

This problem is manifested almost as the previous one. To solve it, it is also worth using the problem of troubleshooting.

When you start Windows 7, the user observes only the black screen and mouse pointer

If you do not load the familiar desktop with the Start menu during the system, and all that we can see the mouse pointer, it's not so difficult to mean and in most cases it is easy to eliminate. This error occurs very often. If you, with the help of the antivirus program, got rid of some serious virus, which has already managed to do the troubles and these stars were fixed by antivirus not to fully.

Elimination. Restart the computer and as soon as the mouse pointer appears, press Ctrl + Alt + Del. Immediately appear the task manager.

In it, you need to select the "File" menu in which to create a new task (execute). A dialog box appears, you should enter the regedit command and press ENTER. This will launch the Windows 7 registry editor.

We will need to look at the sections in the Editor:

HKEY_LOCAL_MACHINE / SOFTWARE / Microsoft / Windows NT / Current Version / WinLogon /
- HKEY_CURRENT_USER / Software / Microsoft / Windows NT / CURRENT VERSION / WINLOGON /

Now you need to edit the value Shell..

With the first section we are convinced that the Shell parameter is installed in Explorer.exe.If it is not so, we install yourself. In the second case, in the section you need to go and see: if it has a shell entry, it must be removed from there. Now it remains to close the registry window and simply restart the computer. Everything should be in place.

And so, all that we could not eliminate independently, eliminate with the help of standard system utilities

In most cases, when you have encountered problems, when you start the operating system, we can see the Windows 7 Recovery Screen. It is for us to help us in restoring the system startup. If the recovery screen itself is not highlighted, then with the next reboot of the system, we can call it yourself. Pressing the key F8.. Select on the "Troubleshooting" menu

You will highlight a message that will contain information that the system files is loaded, you will also be asked to choose a language.

Perhaps the most popular error - Disk Boot Failure, Insert System Disk and Press Enter

Possible variant. The DVD-ROM inserted a disk or a flash drive and a flash drive and your BIOS is configured so that by default sets the launch of one of these media. As a result, the system cannot find the files on the flash drive you need to run DVD disk And reports an error.

If the system correctly displays the system disk, in your power to use. This we will touch on a little later, at the end of the article.

If the system does not display your main hard drive, you can try to disconnect it and connect back, or into the nest next door if it is present.

Boot Bootmgrr is Missing

In connection with this error, you will also not be able to correctly run Windows 7 - a message on the black screen - bootmgr is missing. Calls can also cause different reasons, including all sorts of viruses. It can be caused by the erroneous actions of an inexperienced user who accidentally changed boot record Hard disk. Also, the physical problems of HDD are often the cause of this error.

Elimination. Check if the hard disk itself is working on which the system is installed. To contact your Windows 7 recovery environment, which is slightly lower.

NTLDR IS Missing Error. Press Ctrl + Alt + Del to Restart

This problem is manifested almost as the previous one. To solve it, it is also worth using the problem of troubleshooting.

When you start Windows 7, the user observes only the black screen and mouse pointer

Elimination. Restart the computer and as soon as the mouse pointer appears, press Ctrl + Alt + Del. Immediately appear the task manager.

We will need to look at the sections in the Editor:

HKEY_LOCAL_MACHINE / SOFTWARE / Microsoft / Windows NT / Current Version / WinLogon /
- HKEY_CURRENT_USER / Software / Microsoft / Windows NT / CURRENT VERSION / WINLOGON /

Now you need to edit the value Shell..

And so, all that we could not eliminate themselves, eliminate with the help standard Utilities Systems

As soon as problems are found, they will automatically correct the utility. But maybe such that the system utility will not detect problems. Then we can use the system recovery functions, it often helps if the problems with the starting system arose due to the installation of a system update or third-party software. Since the service interface is intuitive, the problem will be easy to solve.

That's all. In 99% of cases, you will be able to solve one of the problems that leads to the Windows 7 launch error. Otherwise, the problem in the hardware of your computer. You can also, if you are sure that everything is in order with the gland. Good luck!

During only one Windows start, the system performs many processes. Accordingly, when Windows is not loaded, it may be several reasons. Below we will look at what can provoke an error when you start Windows, and also eliminate the problem.

Hardware problems.

We will not stop in detail on the inoperability of the equipment, because Its forces and without the right skills to determine which equipment broke - quite not easy. The following lists some types of errors may say that the problem is related to the hardware:

1. Repeating in a circle of a crash of the same driver can talk about the inoperability of the device, which is managed by this driver.

2. Errors that are accompanied by occurrence blue Screen They can talk about the problems of the device's RAM.

3. Various artifacts or completely missing image say.

5. If during the download, then this can talk about the malfunction of the power supply, motherboard, and sometimes another hardware.

Problems associated with damage to boot files.

If in the first stages of download Windows System Detect the absence of important boot files, the message may appear on the screen "Bootmgr Is Missing". In addition, this problem may be accompanied by both other messages and the complete absence of any inscriptions (black screen with or without cursor).

Bootmgr. - The operating system bootloader that is not available to normal users. However, users can easily format it by booting from external media. After that, the operating system will not be loaded.

Registry problems.

If the damaged registry has caused the problem, the Windows load may not even start. Instead, a message will be displayed on the screen that a failure has occurred in the system, and will also be asked to use the recovery environment.

Quite often, recovery helps to download the registry from the backup and eliminate the Windows start-up problem.

However, the recovery can be successful not always, because the system may have absent backups.

Troubleshooting Windows startup problems.

Recovery environment.

Running Windows 7 to resume much more convenient than Windows XP, which did not have time to get a recovery environment. When installing Windows, this environment is installed on the hard disk, has a separate partition, as well as a separate loader. That is why the recovery environment does not affect the problems faced by Windows.

To start the recovery environment, press the key. F8. and select from all download options Windows Item "Troubleshooting Computer" .

Following to get to the recovery environment, the system will ask you to enter the password. If you forget the password or do not have administrator rights, then the recovery environment will have to run from the installation disk.

1. Start recovery.

To this item should be resorted if you do not know The exact reason for the lack of Windows startup.

Select "Run Restore" . The system will scan and eliminate the problems found.

2. Restoring the system.

This method can be used if Windows stopped being loaded after installing the program, infection with viruses or changes in the registry.

The problem will help to eliminate the parameter "System Restore" But only if the recovery points were saved.

The principle of operation is pretty simple: you choose the desired recovery point, which is dated to themend, when there are no problems with Windows. System rollback starts, after which the Windows load will occur.

3. Restoring the image image.

It applies when backups are not saved on the computer, however, you have a recovery point stored on removable media.

Select "Restoring the image image" And then connect the removable media to the computer on which the archive of the image image is available. Next, follow the instructions of the recovery wizard.

4. Manual recovery Registry.

It is applied when the instructions described above have not led to the elimination of the problem. In OS. Windows backup A copy of the registry is created every 10 days, so you can try to upload the latest work backup.

From the list available parameters Select "Command line" .

Enter the following command in it and press the ENTER key:

Run standard program "Notebook". Select the menu in the header "File" - "Open" .

Go to the directory C: \\ Windows \\ System32 \\ Config

At the bottom of the window in the column "File type" Change the parameter by "All files" To see the full contents of this folder.

The following file list refers to the current registry:

Default, SAM, System, Security, Software (without expansion)

Each of these files must be renamed or add an extension to them. .old. For example, see the screenshot below.

In folder "Config" Open the folder "REGBACK" . Here are the backup copies of the registry. Copy them one by one in the folder "Config" .

Return to the window "Recovery Settings" And at the bottom, select the button. If the problem arose due to a failure in the registry, then running Windows It will pass normally.

5. Restore files.

A wonderful utility is built in Windows, which perfectly restores Windows secure files.

On the menu "Recovery Settings" Select "Command line" And insert the following command in it:

/ scannow / offbootdir \u003d c: \\ / offwindir \u003d C: \\ Windows

The SCANNOW command will start scanning the system, "OffBootdir" indicates the system disk letter, "offwindir" leads to the "Windows" folder.

Please note that in the recovery environment, the letters of the disks may not coincide with those that are visible when ordinary download windows. Therefore, before you start scanning, be sure to run "Notepad" (this process is described above) and check the letter disk letter in the conductor.

6. Manual recovery of files.

If the methods described above did not bring due results, it is worth a manual way to restore boot files, as well as overwrite the main boot record HDD.

To do this, open the menu "Recovery Settings" - "Command Line" And execute the following command, pre-clarifying the letter in the "Notepad" section:

Now alternately follow these two commands:

After that, resume the restart of Windows.

These methods help to eliminate many Windows OS download errors. If the given tips did not help you, only help remains service Center - The problem can be in the hardware.