Why after installing Windows 7 does not start. The computer turns on, but the operating system is not launched: possible causes and ways to solve the problem

Before you understand how to restore running Windows 7, it is necessary to understand what causes the cause of the problem. To do this, it will be useful to learn a little general information about how the download is loaded, and what stages it turns on.

Loading General Information

Conditionally launching Windows 7 can be divided into three stages, which, in turn, are divided into several phases.

OSLoader.

This is the first stage of the system startup, which starts immediately after the BIOS code is executed. First, a small group of drivers starts to work, allowing you to read the data from hard disk. Then Windows loader 7 (WinLoad.exe) begins initialization and loading kernel. IN rAM The "System" registry bus is loaded and another group of drivers. The first stage lasts about 2 seconds and is completed by the appearance of the operating system logo on the screen.

MailPathBoot.

The main and longest stage of the system startup. Visually, it continues from the appearance of the logo before starting the desktop boot. Consists of several phases, the duration of which can be different - from a few seconds, to a pair of minutes.

Presmss.

During this phase, initialization occurs windows kernels, The Plug and Play Device Manager starts to work, the remaining drivers are launched. The errors that occur at this point are usually associated with the problems of the main components of the computer or the incorrect operation of their software.

Smssinit.

The visual beginning of this phase is difficult to determine, but its part is already an empty field arising between the screensaver and the appearance of the welcome screen. The system at this point performs the following actions:

Initializes the registry.
Launches the next wave of drivers that do not have a "boot_start" mark.
Runs subsystem processes.

Most often, the problem when performing this download phase is associated with video card drivers.

WinLogoninit.

WinLogon.exe is a file that runs the welcome screen, so the "WinLogonIt" phase begins with this moment. During this stage, scripts are executed group PolicyServices are launched. The duration of the phase will seriously varies depending on the power of the processor.

Failures at this stage are often caused by incorrect work. third-party applications, including antivirus.

Explorerinit.

Starts with the start of the shell and ends the beginning of the windows dispatcher. During this phase, program icons appear on the desktop, the services continue to run. These processes are accompanied by an increase in the load on the hardware of the computer - the processor, RAM, hDD.

Problems at this stage are usually associated with insufficient capacity of equipment or a malfunction.

PastBoot.

The last stage, which begins with the advent of the desktop and is completed after loading all autorun components. At this stage, all applications started with Windows begin to work. After completing the "PastBoot" stage, the system switches to inactivity mode.

The problems arising at this stage are usually associated with viral activity or incorrect operation of automatically downloadable programs.

Failures at different stages of download

Problems at different stages of Windows startup are manifested by unequal: Some are associated with equipment, others with the registry, third with drivers or important system files. Therefore, it is so important to understand which processes occur when the system starts, so that it is possible to quickly determine the cause of the problem.

Hardware problems

It is often difficult to determine what does not work - some particular equipment or operating system. However, some signs can make certain assumptions about which the device failed:

All errors described are usually associated with a computer hardware, however, there may be exceptions.

Boot files are damaged

The appearance at the early stage of the "BootMGR IS Missing" message type system indicates the absence of critical files, without which Windows load is not possible.
However, sometimes no notifications appear - the cursor is simply blinking on the screen, but no promotion occurs.

BootMGR is a standard Windows bootloader that is not available to the user, as stored on a separate hidden section. It is impossible to remove it by chance, but you can format tomUsing external media.

When loading from an external medium, the hidden volume with the loader looks like this:

Other important files are stored on the system disk in the Windows directory. The system registry data is stored here.

Damaged registry

If the registry is damaged or inaccessibility, the Windows boot may not even start. In this case, the system usually diagnoses the error independently and proposes to start the recovery tool.

Often the built-in system recovery tool helps to eliminate the registry problem by copying the files of its configuration from backup storage. However, there are situations where there are no registry files on the hard disk or they are in non-working condition. In this case, the user needs to manually produce a system registry recovery procedure.

Launch Recovery Tools

The easiest way to restore the launch is to use the built-in Windows tools:

A list of means of returning the system of system performance, in which you want to select "Run Repair".
There will be scanning and automatic correction of the detected errors, if possible.

If nothing happened with the launch, you can try to restore the system, turning it out to the previous state. Here everything is standard: choose control point With a working configuration and return the system at that time.

Another way, which often helps - recovery windows bootloader Through the command line. You can also run it through the Recovery Settings menu. IN command line You need to enter multiple requests (all commands are entered without quotes):

After successfully executing all the commands and the appearance of the Windows 7 report, it should start normally start.

The popular operating system of Windows seventh modification when installing updates sometimes refuses to load completely. Users often complain that after installing Windows 7 updates, it is not started. But they seem to be designed to improve the system. What is the reason for such a phenomenon and what measures to restore computer performance can be taken, read further.

Why after updating Windows 7 does not start?

Starting with the root causes of such behavior of the system. It is no secret that today there is a lot of all sorts of pirate copies, repacks or cut-off options for this OS. Sometimes official update It simply cannot be integrated into the system clean for technical reasons (it does not have the necessary components to install them).

On the other hand, it happens that after windows updates 7 The system does not start even if there is an official copy. Why? Definitely answer this question is difficult. The fact is that the updates developed by Microsoft's specialists do not always look forward-looking, and if you also consider conflicts with the "iron", you understand that you do not have anything about what health.

However, in most cases, when Windows 7 is not started after updating, it is associated with its own components. To eliminate the problem, you can offer several solutions that usually corrected the situation. And start standing from the simplest.

After updating Windows 7, the computer does not start: what to do?

Surely, each user knows that the system provides an automatic recovery function. To begin with, try several times forced to restart the computer. Perhaps this tool will start.

If this does not happen, use when you start the F8 key, and select the Launch of the last successful configuration from the menu. If the recovery works, you will need to set in the "Update Center" manual search updates and exclude from the list the last found. But this is not a way out.

Sometimes the system recovery from removable media can help. There is no complete confidence, but trying to make such actions worth it.

Deleting updates via the command line

When after updating Windows 7 does not start, from start menu You can select troubleshooting and log in to the recovery environment where the command console is used. The optimal option will be the same choice, but with the condition of loading from removable media.

To begin with, the console needs to use the selection commands system partitionIn which updates were installed, as shown in the figure above. The digit of the disk usually does not change.

Next, you need to enter a command to view the newly installed updates (DISM / Image: D: / Get-Packages), after which via PKM must copy the package ID highlighted with a red frame in the image above (updates may be several).

The packet deletion operation itself is to use the uninstall command with the insertion of the certificate number after it (figure above). After completing the procedure, the system needs to be overloaded. If the start is impossible again, you will have to delete all the latest updates alternately, based on the date of their installation.

Removing corrections by Microsoft

Also in a situation where it does not start after updating Windows 7, you can use specialized extended means like ERD Commander with the creation of a bootable medium. The recovery and diagnostics menu will remain the same, but the Diagnostics & Recovery Toolset will appear at the bottom. It must be used.

After entering the main menu, you should use the removal string, after which the corresponding "master" will start. A list of all installed updates will appear in the new window. For loyalty, they will have to be removed one by one, overloading the system every time and checking its performance. In the end, when the failure update is found, the system will boot into as usual mode.

Note: It is advisable to write down the numbers of all packages, in the "Update Center" set a manual search and exclude from the update list previously deleted.

Additional measures

In principle, you can use the safe mode if it works. In this case, the use of the command line will not be required. Failure packs can be uninstalling through the "Update Center" or section of programs and components in which the corresponding viewing menu of the installed updates is selected. But, again, uninstall packages will still have one by one, not a whole list.

Finally

As you can already understand, the problem is eliminated simply enough. As for the use of a system toolkit, whoever says there, it is best to use the bootable media, and not a built-in system toolkit, which, by the way, can be inaccessible. But in general, the main decision is reduced exclusively to the removal of recently established updates. The loader damage was not considered, although for loyalty, you can use commands based on the bootrec.exe tool with an alternate task of additional attributes via the right slash (FixBoot, FixMBr, RebuildBCD).

Windows 7 operating system is the most popular and successful OS from Microsoft, set by 50 percent of all personal computers worldwide. After failed Vista, users gladly moved to a new OS, and even after the release of the "eight" and "dozens" are not in a hurry to be updated. Computer running Win 7 is a quick and productive device that guesses the everyday tasks that the user lay on it. However, the PC owners often declare that there is a problem with the launch of the device.

In some scenarios, the computer refuses to start, showing an error message

Depending on the content of this message (or in the absence of such a message at all), you should build a device diagnostic strategy and conduct a recovery procedure.

Error with the text "Disk Boot Failure"

That is why the first thing to be done when such an error occurs, it is disconnected from PC all drives and check the drives for the presence of disks in them.

The list of the following actions depends on what causes the cause of the error occurrence, so it is worth checking:

The order of devices in the BIOS. It is recommended to install HDD as "First Device" so that the PC is looking for boot files on the main hard disk, and then used other equipment.
Check if HDD is displayed in the list of devices on the first PC screen. If not, this is the reason to disassemble the device and check the correctness of the hard disk connection to the Mother Board, or check the performance of the equipment on another PC.
Check if the battery did not discharge motherboard. This battery is responsible for storage. bIOS settings With a computer disconnected: every time the power disappears, the parameters are returned to the factory value, and the computer is looking again boot records Not where it is necessary, with the result that Windows does not start.

Boot "BootMGR Is Missing"

The second common error in which Windows 7 does not start meets the user with the text "BootMGR IS Missing"

The essence of this error is that the system disk does not have or damaged the program that is responsible for loading the OS.

Tip: As in the case of a problem " Disk Boot Failure, "It is recommended to first turn off all unnecessary media from PC and check the device reading order. Only if this does not help, go to further manipulations.

Especially to solve problems with the boot firmware in Microsoft developed a startup recovery tool. To use them, you need to:

Run a computer.
In a second before the OS boot screen appears with the Windows logo, press the F8 key.
Among the download options list, click on the "Troubleshooting" line, after which the Windows 7 startup recovery wizard starts.
Select in the system recovery system that appears.

At first, the system will offer the user to specify the OS in need of diagnostics, and then will ask the tool to be eliminated.

You should specify your Win7 at the first stage, and on the second to select "Start Restore"

In most cases, the described manipulations must solve problems with the launch of Windows 7.

In a situation where the system recovery does not work on Windows 7, it is recommended to insert the installation disk into the drive, since it also has a tool for restoring the operability of the OS.

Error "NTLDR IS Missing"

But the appearance of this problem most often speaks either HDD hardware malfunction, or damage to the NTLDR system file. The best way Diagnose the problem - remove the disk and use another computer to check the performance of the equipment.

However, before turning off the HDD and check its performance, it is advisable to make sure that the computer is not connected to the computer currently Another hard disk, and that it is not set first in the list of boot devices. As a rule, after changing the order of downloading or disabling the conflicting equipment, you can turn on Windows 7 yet.

Text notification "NTLDR IS Missing", in which the Windows system is also not loaded, is somewhat less common than the two problems described above.

The problem with NTLDR can appear in the scenario when the user installed several OS on one HDD. In this case, a way to restore the launch of Windows 7, described in the BootMGR IS Missing error, will help.

If, after executing the actions described above, it still failed to start the computer, you should check the HDD for the presence of viruses using another device or special disk from Dr.Web or Kaspersky. Also from the second computer, you should copy the NtDetect.com file and the NTLDR itself, which is in the root of the section. Important condition - OS on both computers should be identical.

Black screen

Another famous problem is a black screen after windows downloads 7. OS passes all stages of inclusion, successfully loaded, but at the moment when the login screen should already appear, nothing happens at all. At first it may seem that the computer is loaded for a long time, but the active mouse cursor gives another problem here - the blocked Explorer.exe file. It - windows Explorerresponsible for displaying the desktop, folders and most of the graphical interface OS.

The black screen after starting Windows 7 is treated with manual opening of the conductor. To do this, click on the keyboard at the same time "Ctrl" + "Alt" + "Del", check that there is no explorer.exe in the list of processes, and then through the function "File" -\u003e "Run a new task" try to start it yourself, scorching In the text field the name of the process.

If a this solution It will not help, run Windows startup in safe mode and check the performance of the conductor there.

To turn on the PC, this method requires to press F8 before the OS boot screen, and then select " Safe mode with command line support "among the list of options

After downloading the OS, the user will see the command line in which you want to enter "explorer.exe". In the event that the contents of the desktop content is displayed in the safe mode, and the folders are open, the root of the problem lies in one of the programs installed on the computer. In some cases, Windows 7 is not loaded as usual due to anti-virus software, and in the other due to incorrect installed updates. It should be remembered which actions were made with the device lately and cancel them by deleting a new software or roll back to the recovery point.

View video

Now you know what to do if Windows 7 is not loading.

In this article, we will consider all popular reasons why Wndows 7 or XP is not loaded on a laptop or computer and a black screen appears with inscriptions. Those. Possible software problems will be considered and their elimination methods. This will be a continuation of the first part of our review, in which we viewed possible options, why the computer does not load, and hardware problems (with iron). So, if you did not find an answer to your question, then be sure to read the first part - maybe it is there.

If your PC does not give any signs of life at all and does not respond to pressing the power button, we recommend you read the article, why the computer does not start. It contains the main causes and methods of eliminating this breakdown. But do not forget that if there is no desire to deal with the problem yourself, then you can always contact our service and order computer repair at home.

We tried that this review would be the most complete, and collected all the most popular reasons for which Windows 7 or XP is not launched on a computer or laptop. Coming has met many times in our practice. But this option is also possible that you will not find solutions to your problem. In this case, write in the comments, and we will try to help you.

On the black screen inscription: NTLDR Is Missing and Windows does not load

This is one of the most common reasons why Windows XP or 7 does not start. The message "NTLDR IS Missing" is translated as "NTLDR is missing". NTLDR is a bootable operating system file, to start which you need three files (NTLDR, Boot.ini and NtDetect.com) in active terder section The disc from which the download is configured. In the case when at least one of the files is missing or there is no access to it, then Windows 7 or XP will not boot and give an error.

Possible causes and what to do:

NTLDR files, Ntdetect.com and boot.ini have been moved or completely removed from the disk containing the operating system. In this case, you need to copy the missing computer files from the working OS.
Strong viral infection - a deep test of a PC for viruses is needed. It may also be necessary to restore damaged system files.
In the root directory of the system disk too many files accumulated.

Unfortunately because of the features file System NTFS, which is used on most modern computers, Simple deletion of unnecessary files from the root directory of the system partition is unlikely to help eliminate the malfunction - Windows will not start anyway. Additionally, you may need to copy boot files from a working PC.

If several operating systems are installed on the hard disk, then it was possible to conflict between them.

You can fix this malfunction by downloading the computer using the operating system restore disk, and manually edit the boot.ini file that is responsible for the OS boot sequence.

Windows XP is not loaded due to registry problems

As a rule, this problem is characteristic of this version of the operating system. In newer (seven, eight, dozen), we did not encounter such a problem.

Before downloading, one of the following inscriptions appears on the black screen:

Unable to run Windows due to a spoiled or missing file \\ Windows \\ System32 \\ Config \\ System;
Unable to run Windows due to a spoiled or missing file \\ Windows \\ System32 \\ Config \\ Software.

These messages mean that you are faulty than the operating system registry. The reasons why this could happen and now does not start Windows XP, there may be several:

Your PC has been subjected to viral infection.
You incorrectly complete the computer, forcibly turning it off through the button or pulling the cord from the outlet.
You fail (or already came out) a hard drive.

There are several ways thanks to which you can return the performance of your operating system. With a good defold, it will be done even without reinstalling the entire system. But all these methods require deep knowledge of the PC software.

Newbie, making even a small mistake or inaccuracy, risks losing the opportunity for subsequent successful recovery. In addition, it may be necessary to restore personal information on the hard disk. Therefore, with this problem, we recommend contacting specialists.

An inscription appears on the black screen: bootmgr is missing

"Bootmgr Is Missing" is translated as "bootmgr is missing". If Windows 7 or XP is not loaded and this message appears, this means that the boot sector is missing or damaged.

This could happen because incorrect installation programs, due to a failure in the operating system, careless actions of the user or due to problems with hard disk. Before you attempt to eliminate the error, you must diagnose the hard disk for the presence of broken sectors.

In order to eliminate this problem need boot disk From which the installation of Windows was made. You must download the computer from the disk and in the "System Recovery Settings" select the "Restore Run" item.

In this case, the boot sector will be restored automatically. If after that, all the same windows 7 does not start, but what do you do not know, then better contact the service. Because Restoring the boot sector in manual mode Very difficult operation. Inactive actions can lead to the loss of all information stored on the computer.

Why winds does not load and hangs during loading

Many have come across a problem when the logo with a running string appears during the operating system and the computer hangs on it. Waiting for an hour, two or day meaningless - Windows will not start.

Here are the main reasons for which it can happen:

The operating system has undergone strong viral infection - in this case, a complete check of the system disk for viruses can help. You can do this by downloading the computer from the recovery disk or connecting the hard disk to another computer.
The operating system failed

You can try to boot in safe mode and make the system restore, or try to run the "download of the last successful configuration". Very often it helps to solve the problem. To do this, immediately after turning on the PC, start pressing the "F8" key. Menu should appear where you can choose this option Downloads.

Malfunction of the hard disk of the computer.

Due to improper operation or simply over time, broken sectors may appear on the hard disk. The information that was recorded on them becomes inaccessible and as a result can stop loading Windows 7 or XP and hang during the download process. You can restore and replace the broken sectors, well, the hard disk itself will be replaced. You can read.

Also, with such a malfunction, you can try "download the latest successful configuration." If all the same does not bring the result, then try the "Safe Mode" item in the same menu. english language It may be " Safe Mode."). When it turns on, then try to "roll back" to previous state. To do this, find and run "System Restore".

Appears " blue screen of death"

Another popular problem when Windows 7 is not loaded further than the logo, and the "blue screen of death" appears. In this case, you will also need to call the download menu using the "F8" key.

The menu must be the "Troubleshooting" item. Press it and you have the "Recovery Settings" window.

We will briefly understand the items that are in it.

Start Restore - Automatic troubleshooting, due to which Windows 7 cannot start, and try to fix them. It does not always help, but it is necessary to try.
Recovery of the system - from here you can also make a "rollback" of the system, as from the safe mode.
Restoring the System Image - If you have a saved system image on your hard disk, you can recover using it.
Diagnostics windows's memory - Check system memory for errors.
The command line is for "advanced users." With it, you can delete, copy or move files in manual mode.

Thus, first of all, try to use the startup recovery item if it does not help, then the "Restoration of the system".

In this article, we reviewed the main reasons caused by the computer malfunction of the computer, due to which the windows is not loaded very often. We hope that we were able to answer all questions, and accessible to explain what to do in this case.

If you have not managed to find out the reason why Windows 7 or XP does not start on your computer or laptop, and what to do you do not know, you can always seek help to us - in the center computer care website. The wizards of our service quickly and accurately determine the cause of the breakdown and eliminate all malfunctions. In addition, they will give valuable advice, how to make such no longer repeated.

Also write your questions in the comments. And you will definitely get the answer.

Often there are cases when after installing any program, driver, inadvertently deleting a system file or a viral attack, the Windows 7 operating system begins to "slow down" or even stops functioning. If there is no computer important informationYou can simply reinstall it. Otherwise, the system restore function will help. This means Performs a refund of the OS with all data available on the hard disk to a working state.

Ways to restore Windows 7

The developers of the Windows WINTOV are provided standard methods Recovery, but they all do not allow one hundred percent warranty. Therefore, be prepared that you may need to use several resuscitation methods alternately.

You can return the performance of Windows 7 using:

applying the latest workable configuration;
secure mode;
recovery points.

Using the latest successful configuration

This Windows renovation tool is the easiest performed, so it should be resorted first. The sequence of work will be as follows:

After the implementation of the above actions is carried out automatic recovery Data from the OS registry and operational parameters of the available drivers. If this method fails to run the system, go to the second method.

Safe Mode - Effective Windows Resuscitation Tool

Safe mode is a special version of the operating system, in which the automatic launch is not performed. installed programsAs with normal Windows loading. In this case, only those drivers are activated, without which the OS functioning is not possible.

This tool starts the same way as the last working configuration, that is, using the F8 key. When entering the system, this method will change the screen resolution by 800x600. It is normal, so it's not worth worrying.

The following recovery procedure is presented below:

Windows 7 boot disk is inserted into DVD drive and starts. The assembly of the system used should be the same as on your computer. Therefore, if you have the opportunity, take the same disk that you used during the installation of the Ourser.
Upon pop-up message about autorun, click "Cancel".
Open the "Run" command window, which is in the Start menu.
Enter the SFC / SCANNOW system file control command.
After some time after activating the process of searching executable files, all damaged or deleted system data will be copied with DVD Disc and restored.
If you want to follow the passage of recovery, you need to log in to the command line by entering the "CMD" command in the "Run" window. After that, in the string is prescribed "SFC /?". Log in to the command line should be performed on administrator rights, since otherwise you will not receive the required information.
If the data line will be displayed in the form of hieroglyphs, then you will additionally need to enter the properties and choose the desired language there.

Using the recovery point

Another effective renewal agent windows systems - Application of recovery points. The principle of operation of this function is based on the fact that after a certain period of time, the available OS configuration is written to the hard disk. When any software malfunctions occur, you can use the stored dots and restore the computer's performance.