There are at least three common errors that lead to problems loading Windows 7. When errors occur, the system displays a short message on the monitor screen indicating the problem. It is these small guidelines that we will be guided by when solving problems that arise.
Perhaps the most popular error is 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 operating system Windows 7, this message is displayed for you. It means that the system recognized the disk from which it starts as non-system, that is, according to Windows 7 system files, necessary to run it, are not on this disk. This can be caused by various reasons. Let's look at the most common ones.
Possible variant. A disc was inserted into the DVD-ROM or a flash drive was connected and your BIOS is configured so that by default it launches one of these media. As a result, the system cannot find the files it needs to run on the flash drive or DVD disc and reports an error.
Elimination. You should try turning off absolutely everything external drives: phones, memory cards, flash drives and external drives. After this, you should turn on the computer again. Most likely, the system will start correctly this time.
It may be that the recommendations provided above will not help. In this case, you need, firstly, to BIOS settings set your default launcher system disk. And secondly, you should make sure whether the BIOS detects your system disk at all. It may be that it is out of order.
If the system correctly displays the system disk, you can use it. We will touch on this a little later, at the end of the article.
If the system does not display your main hard drive, you can try disconnecting it and connecting it back, or into the slot next door, if present.
Other problems can also lead to this error, for example, viruses, etc. In any case, it is best to first check the methods that we have mentioned. Most likely they will work. If not, then feel free to go to the end of the article, in which we indicated step-by-step elimination Windows problems 7 using the utility.
Error BOOTMGR is missing
Due to this error, you will also not be able to start Windows 7 correctly - a message on a black screen - BOOTMGR is missing. This problem can also be caused by various reasons, including all kinds of viruses. It can be caused by erroneous actions of an inexperienced user who accidentally changed the boot record hard drive. Also, physical problems of the HDD are often the cause of this error.
Elimination. Check whether the hard drive on which the system is installed is working properly. Seek help from the Windows 7 recovery environment, which is discussed below.
Error NTLDR is missing. Press Ctrl + Alt + Del to restart
This problem manifests itself in almost the same way as the previous one. You should also use the Troubleshooting Environment to resolve this issue.
When starting Windows 7, the user sees only a black screen and a mouse pointer
If, when the system starts, the usual desktop with the start menu does not load, and all we can see is the mouse pointer, then everything is not so difficult and in the vast majority of cases it is easy to fix. Very often this error occurs if you, using an antivirus program, got rid of some serious virus that had already caused trouble and these same troubles were not fully corrected by the antivirus program.
Elimination. Restart your computer and as soon as the mouse pointer appears, press Ctrl + Alt + Del. The Task Manager will immediately appear.
In it you need to select the “File” menu in which to create new task(execute). A dialog box will appear, in which you should enter the regedit command and press Enter. This will launch the Windows 7 system registry editor.
We will need to look through 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, make sure that the Shell parameter is set to Explorer.exe, if this is not the case, then install it yourself. In the second case, you need to go to the section and look: if there is a Shell entry in it, then it needs to be removed from there. Now all that remains is to close the registry window and simply restart the computer. Everything should fall into place.
And so, everything that we could not eliminate on our own, we eliminate with the help standard utilities systems
In most cases, if problems arise when starting the operating system, we can see the Windows 7 recovery screen. It is this screen that will help us in restoring the system startup. If the recovery screen does not appear on its own, then the next time the system reboots we can call it up by pressing a key F8. Select "Troubleshoot your computer" from the menu
As soon as problems are found, they will be automatically corrected by the utility. But it may also be that system utility will not find any problems. Then we can use the system restore functions, this often helps if problems with starting the system arose due to the installation of a system update or third party software. Since the service interface is intuitive, the problem will not be difficult 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 startup error. Otherwise, the problem is in the hardware of your computer. It is also possible if you are sure that everything is in order with the hardware. Good luck!
Mar 3 2015
How to recover Windows system 7 on a laptop, a black screen appears when loading, the recovery environment does not work, I deleted all the hidden partitions, there is no original disk with Windows 7.
I spent a lot of time, tell me what to do now, or at least how to insure myself against such situations in the future, preferably without using paid programs Reserve copy data.
How to restore Windows 7 system
Unfortunately, there are many reasons for this problem, ranging from incorrectly written drivers, harmful effects of a virus, errors file system and ending with our erroneous actions when working with a computer, there is no need to be afraid of such problems, you need to learn how to deal with them effectively.
Let's think about how to restore a Windows 7 system, and also insure ourselves in the future against possible troubles using the backup and recovery tools built into the operating system.
We will learn how to restore Windows 7 without using third party programs for backup even when the System Recovery Options are not loaded and the F-8 button will be useless.
Has in its arsenal quite powerful and good tool-> Recovery environment, which is created automatically when installing Windows 7 in a hidden partition and contains five other tools that solve numerous malfunctions and problems.
Note: If you learn how to use Windows 7 recovery tools correctly, and this is not difficult, then you can do without additional and paid data backup programs.
You can launch the recovery tool by pressing the F-8 button on the keyboard immediately after starting the computer. After this, the menu Additional boot options will open in front of you: Troubleshoot your computer, then Safe mode, Safe Mode with Boot network drivers etc.
A small digression: Before selecting Troubleshoot your computer, try the easier option - Last Known Good Configuration - in simple words, the operating system always remembers the last successful boot of the computer and enters this information into the registry.
If there are problems loading, Windows can remember the registry settings and driver settings that were used when the system was last successfully booted and use them if you select the Last Known Good Configuration option.
If this tool does not help, select the first -> Troubleshoot computer problems.
Next, we get to the Windows 7 System Recovery Options menu, this is what we need, this is where we can select the System Restore Tool we need, there are five of them in total, let’s take a closer look at how they all work.
The first thing to do is apply Startup Repair (Automatically fix problems that prevent Windows from starting).
Required digression: After pressing the F-8 button when booting the computer, you may not have the item > Troubleshoot your computer, but only Safe Mode and so on, the question arises why.
When installing Windows 7, a recovery environment partition is created automatically and is located in the root of the drive (C:) in Recovery folder. You can also see in the Disk Management window - separate, hidden section hard drive, its capacity is only 100 MB, it is used to store boot configuration files (BCD) and the system boot loader (bootmgr file).
You can see it under Computer->Management->Disk Management. Under no circumstances should you delete this partition (many people delete it out of ignorance), otherwise you will not have the recovery environment start, that is, you will not have the Troubleshoot your computer option, and in more severe cases, you simply will not boot the system.
In the lower screenshot you can see another hidden partition, with a capacity of 9.02 GB, this is a hidden recovery partition with factory settings on my laptop, yours may be larger or smaller. It’s also better not to delete it; if necessary, you can always restore Windows 7 from it.
What should you do if you do not have a partition with a recovery environment and when you press the F-8 button in the Additional boot options menu, the Troubleshooting computer option does not appear? How then to restore the Windows 7 system?
An installation disk with the Windows 7 operating system can help here. You can run the recovery tool by booting from the original Windows 7 installation disk, selecting System Restore at the very beginning.
If you don’t have an installation disk, then you can use the Windows 7 Recovery Disk (you can make it in any running Windows 7) in five minutes, then you can also boot from it and do the same.
So we finally got to the System Recovery Options, either using the F-8 button and the Troubleshooting item, or the Windows 7 installation disk or the Windows 7 Recovery Disk.
In the System Restore Tools Selection menu, select the first one:
Startup recovery-> there will be an analysis of faults that interfere with normal booting Windows 7 and their further correction for normal loading and functioning of the operating system.
During the process, we may be warned that problems have been detected in the boot parameters, click Fix and restart.
System Restore-> using this function we can select a previously created system restore point, if we have it enabled, and roll back to the time when our Windows 7 worked and loaded perfectly, everything is simple here.
Restoring a system image-> I personally use this tool; if used skillfully, it can be replaced paid programs on data backup, if interested, read on.
What's good about it? It will help when you don't have the original Windows 7 installation disk and you've deleted the hidden partition with your laptop's factory settings, but that's not all.
Sometimes there are situations when, for various reasons or due to the actions of a virus, you will not be able to load the operating system at all, or many people ask How to restore the Windows 7 system, even if the menu with Additional options Downloads will also be unavailable. Should I reinstall the operating system again?
Therefore, immediately after Windows installations 7 on your laptop or computer, we create it using this function -> Restore system image, an archived image of our Windows 7 on the hard drive, we take care of it.
You must create a Windows 7 Recovery Disk (read below), it will help you use the System Image if the Advanced Boot Options menu does not load.
Go to Start -> Control Panel -> Back up computer data.
Select “Create a system image”.
In my case, Local disk (E:), if you have system unit some hard drives, then of course it is better to place the backup on the hard drive where the operating system is not installed.
By default, the data archiving program will automatically select a partition with the Windows 7 operating system; if you wish, you can add Local disks for archiving, as long as you have enough space.
Note: You may notice that I have two operating systems installed on my laptop, so the archiving program selected two Local disks.
Click Archive and the process of creating an archive with our Windows 7 will begin.
Created, it will look like this.
Now, if necessary, you can deploy the archive with Windows 7 to your computer in 20-30 minutes. It would be better if you additionally copy the archive with the system onto a portable one HDD, this way you will protect yourself doubly.
Let's imagine that we can't start Windows 7 and deploy the backup we created, let's do it together.
We launch the Windows 7 Recovery Tool by pressing the F-8 button on the keyboard immediately after starting the computer.
The Advanced boot options menu opens, select Troubleshoot your computer.
Restoring a system image
Use the latest available system image.
Of course, all our data is on Local disk, where the operating system is now being restored, will be deleted, so you can first boot from any Live CD and copy what you need.
How else can you restore your Windows 7 system? Of course, using the Windows 7 Recovery Disk.
Let's create one that can be used to boot the computer; it will contain recovery tools that can be used to repair Windows 7 boot problems, as well as restore the operating system from the backup copy that we created in advance.
Important: For a recovery disk, the bitness of the system is important, you can use a 32-bit recovery disk for any 32-bit Windows 7, and a 64-bit recovery disk for any 64-bit Windows 7.
Let's go again Archiving computer data.
Create a system recovery disk, insert the DVD into the drive, click “Create disk”.
When the Windows 7 Bootable Recovery Disk is ready, put it in a safe place.
To restore Windows 7 from a Recovery Disk, you basically don’t need any working operating system at all.
You will only need to change the boot priority to the disk drive in your computer’s BIOS, insert a recovery disk into it and restore your Windows 7 using the archive.
Many here can draw an analogy with data backup programs, and this is correct, they work on the same principle, only their functionality is, of course, more convenient.
Recovering Windows 7 from a Recovery Disk. I show you how to do it. Let's say we're in trouble, we can't start Windows 7, when we press F-8 on the keyboard immediately after starting the computer, nothing happens.
We cannot get to the menu with Additional boot options and an error message is displayed. In this case, the system archive on the hard drive is not available to us. This is exactly the kind of trouble that happened to our reader Ilya, who wrote us a letter asking for help.
In this situation, many people reinstall Windows 7 from scratch, but not you and me, because we have a System Recovery Disk.
We insert it into the drive and reboot, set it to BIOS loading from the drive, as I said, the boot disk starts the System Recovery Options program.
Press Enter until the prompt to boot from the disk disappears.
Automatically, the recovery tool running from the disk will try to recover Windows startup 7.
If nothing works, select any tool, for example, try Restoring a computer using a previously created operating system image.
We use the latest available system image.
What other ways are there to restore Windows 7?
There is another little-known way to restore Windows 7 boot after a failure, and I’ll tell you about it. At first glance, it may seem difficult to many, but nevertheless it often helps me out.
The fact is, friends, that a very large part of the problems due to which you cannot boot Windows 7 lie in registry errors. And Windows 7 would not be Windows 7 if it did not have a mechanism that protects registry files. Such a mechanism exists and creates backup copies of the registry in the RegBack folder every 10 days, regardless of whether you have system recovery enabled or not.
If you cannot solve problems loading Windows 7, you should try replacing the existing (and apparently damaged) registry files from the Config folder with archived files from the RegBack folder. To do this, we will have to boot the computer from the Windows 7 installation disk or the Windows 7 recovery disk.
Boot into the recovery environment and select the command line.
We type in it - notepad, we get into Notepad, then File and Open.
We go into the real explorer, click My Computer. Now we need the system drive C:, attention, the drive letters here may be mixed up, but the system drive C: I think you can tell by the system drives inside Windows folders and Program Files.
We go to the folder C:\Windows\System32\Config, here are the active registry files, specify the File Type - All files and see our registry files, we also see the RegBack folder, in which every 10 days the Task Scheduler makes a backup copy of the registry keys.
So, we will replace the existing registry files from the Config folder backup files registry from the RegBack folder.
So, first of all, let’s delete from the C:\Windows\System32\Config folder the files SAM, SECURITY, SOFTWARE, DEFAULT, SYSTEM, which are responsible for all registry hives (my advice is to copy the registry hives somewhere before deleting, just in case).
In their place, copy and paste files with the same names, but from backup copy, that is, from the RegBack folder.
Note: The SAM, SECURITY, SOFTWARE, DEFAULT, SYSTEM files cannot be deleted all together; delete them one by one. Then copy the same files from the RegBack folder in their place.
Friends, if this does not help, apply integrity restoration Windows files 7, if the operating system does not boot, it is done in exactly the same way as in Windows 8.
What else do we have left of Windows 7 recovery tools?
Memory diagnostics 7-> checks system memory for errors. Command line-> using it you can delete files that interfere with loading Windows 7.
I hope our article on how to restore Windows 7 system helped you.
Most of the features the average owner uses desktop computers and laptops, are accessible to humans thanks to the use of special operating systems on technology. The most popular OS is the product from Microsoft. Therefore, if Windows 7 or one of the other OS variants does not boot, the user is in serious trouble.
There are many reasons why Windows 10 (7, 8, XP) does not load. Often in this case, an unpleasant situation is accompanied by a specific error message. But what to do if Windows 10 (7, 8, XP) does not boot on a laptop or regular PC without such messages? There are several universal methods treatments that can lead to a way out of the current situation.
Selecting the download type
This is the simplest fix method if Windows 7 or another type of operating system from Microsoft does not load. What you need to do:
- Start rebooting the computer.
- Press the “F8” button.
- In the proposed list, select the launch item with the most successful configuration.
In some cases, this action is quite sufficient when Windows 7 (8, 10, XP) does not load.
Windows Recovery
So Windows won't boot. You can try to return Windows to full functionality using the recovery menu. To do this, of course, you will need to have a boot disk with the desired OS option on hand. What actions should the user take in this case if Windows 7, 8, 10 and XP does not load:
- Insert the source into the drive.
- Change the priority in BIOS. That is, the operating system should not be launched from a hard drive, but from a DVD-ROM.
- After starting the process, you will need to press the “R” button.
- Select the option to restore.
- Wait for the results. Restart the equipment one more time.
Windows XP (7, 8, 10) still won't load early? Next option.
Recovery within the OS itself
If previous operations have been carried out, but Windows 7 still does not boot, you can try to restore it directly using the tools of the operating system itself. It's quite simple:
Naturally, at the end you will need to restart the computer to check whether Windows 10 (7.8, XP) does not boot or whether the problem has been successfully resolved?
Boot file disinfection
If after Windows updates 7 won't load, then possible reason trouble lies in the damaged boot file Boot.ini. To fix the problem you will need to follow these steps:
- Start the PC using the same external source.
- In the recovery menu, go to the command line.
- Enter the phrase “Bootcfg/add”.
Wait for the process to complete and initiate another reboot to check whether Windows 8 or its equivalent of a different version does not boot, or whether the treatment helped in this predicament?
Boot record defect
Another option for trouble with Windows. Windows won't load? The boot record may have become corrupted. In this situation, you will need to repeat almost the entire procedure described in the previous paragraph, but enter a completely different phrase into the command line. Namely: “Fixmbr\Device\HardDisk0”.
Perhaps this action will be quite enough when Windows 7 does not load and freezes on the logo.
Damage to the boot sector on the hard drive
This nuisance can lead to a situation where, for example, Windows 7 does not load beyond “Welcome”. Here the treatment is also quite simple - the steps are repeated by running the command line from the computer user, into which you should type “Fixboot” and then the letter that is responsible for the hard drive partition where the installed OS version is located.
Quick reinstall
Sometimes, if the computer does not boot beyond the Windows 7 splash screen, only reinstallation can help. But it is not at all necessary to launch a full-fledged procedure that lasts quite a long time. You can speed up this process. This is very powerful tool treatment, since he is able to cope with most of the troubles that arise.
What is required from a person:
- Start again from the boot disk.
- Press the “R” button, then the “Esc” key.
- Select quick reinstallation of the operating system.
It is important to understand that this procedure can only work if identical versions of the OS are located on the disk and hard drives. That is, if, for example, Windows 10 does not boot after the update, you should not try to quickly reinstall it using a boot disk with Windows 7 or 8 for this purpose.
Conclusion
A special case of this situation may be a constant automatic reboot of the OS. Naturally, this option excludes the possibility of any therapeutic processes. To break this sequence, you will need to press the “F8” button the next time you start the system and go to the “ Extra options" After this, disable the OS reboot procedure and if failures are detected. Well, then you can use one of the treatment options described above.
All described methods are universal. That is, they are recommended to be used only when it is not possible to accurately determine the root cause of the malfunction. Most often, the user can see a message on the monitor screen indicating a specific error code. And each of them has their own method of correcting an unpleasant situation. Most of them can be easily found on this Internet resource dedicated to answering questions related to OS damage from Microsoft.
The causes and solutions to the problem of the inability to start the OS are determined by error messages or their absence. The main situations are listed below.
Error disc boot failure Insert system disc and press Enter
This least critical error and it is the easiest to solve. It is caused by the fact that the system does not detect the boot disk due to the boot device sequence settings in the BIOS. Enough for a start remove the CD from the drive and disconnect devices such as flash drives, card readers, disconnect external hard disks, other USB drives. To restart a computer. If the system does not boot or you want to completely eliminate the reasons, you need to reboot again and enter the BIOS.
You will need to fix the download queue. To do this, you do not need to know the computer or open its case. You must follow the PC manufacturer's instructions or motherboard. Usually needed immediately press the Del key as soon as the computer turns on. A menu will open in which you need to set correct order.
If after this the system does not want to start, then you need to use installation disk Windows. Put it in the drive and reboot. A window will appear with a choice of keyboards and languages. Click the cursor on the desired one. Proceed like this:
If the OS does not see the hard drive at all, then you need to check its connection with motherboard. This is appropriate if you do not have a warranty on your computer. Otherwise, the check is done in the workshop.
Error Bootmgr is missing
It is caused by an incorrect change boot entry hard drive. There can be many reasons. Her viruses damage or unthought-out user actions, work different programs. But the most dangerous reason is physical damage to the media, as it can lead to the loss of important data.
In this case you need check disk a special utility. It is most convenient to use Victoria or MHDD products. You need to do this:
- Download image You can download the boot disk from the official website;
- Write down it on CD;
- Load up from CD;
- Check disk.
If bad sectors highlighted in red are detected, you should immediately copy important information on external media. Next, solve the problem with the device.
If no damage is detected, proceed as described in the previous paragraph. You can also enter the mode command line and execute commands bootrec.exe /fixmbr And bootrec.exe /fixroot by booting from the installation disk.
Ntldr is missing
The message appears after an incorrect shutdown of the PC due to viruses or changes in the boot sector. In this case it is necessary find ntldr files and file ntdetect.com. They can be taken from other computers in the \i386 folder or from Live cds.
Then the following work is done:
- Specified files copied to the root of the system disk;
- Computer I'll downloadandseems from the installation disk;
- When prompted to launch the recovery console with the R key, the user clicks on it;
- By using cd c commands: a transition is being made to system partition hard drive;
- The following commands are executed fixboot And fixmbr. The first one will create boot sector, and the second will copy the mentioned objects.
- If the system partition is inactive, it is activated using programs for working with sections of hard disk, then you need to check the paths to the operating system specified in the boot.ini file.
Loading stuck when black screen and mouse pointer appears
This usually occurs as a result of a virus and its incorrect removal. For example, a ransomware virus.
Then give the PC the following commands:
- When stuck, press Win + R;
- A window will pop up Execute;
- Print regedit;
The Registry Editor will appear. Look for lines HKEY_LOCAL_MACHINE/Software/Microsoft/Windows NT/Current Version/Winlogon/ And HKEY_CURRENT_USER/Software/Microsoft/Windows NT/Current Version/Winlogon/.
Having found the parameter in them shell, change its value to explorer.exe.
It happens that boot problems appear when you change the PC configuration. Then the recovery screen will appear on its own or you need to press F8 and select troubleshooting.
Windows 10 won't start
The new OS may refuse to work such reasons;
- Error when updating;
- Black screen while loading;
- Incorrect operation Internet connection devices;
- Crashes when exiting hibernation mode;
- Malware;
- Flaw free space on disk;
- Errors in the operation of different programs or drivers.
Rolling back updates
If the update fails, you need to use the options restore previous state provided in this Microsoft product. When starting the device, press F8. The recovery menu will open. 
You need to click on Diagnostics, and then on Restore. Everything will recover on its own. If unsuccessful, use the restore point by clicking on Extra options. Then a suitable recovery point is selected.
Black screen on boot
The system will come back to life either after a normal reboot or after operations similar to those described in the previous paragraph. The reason for a failed download is usually malware. The most effective way To get rid of it, formatting with complete reinstallation systems. All important information should be copied. Or check as described below.
Internet connection devices do not work properly and crashes when resuming from hibernation mode
Users of the operating system have long noticed that if the boot fails, it’s worth trying disconnect from the network and turn off the power Wi-fi routers, network cards, modems or other devices. As a rule, this is due to malfunctions in the operating system. If you exit hibernation mode incorrectly, you just need to press the power button on the case and hold it for 3-4 seconds, and then turn on the PC again.
Checking your computer for viruses
To exclude infection of the device as the reason for the refusal to start, you need to carry out antivirus scan. To do this, download Live cd from antivirus programs and check your computer. It's better that it contains several antiviruses. According to tests by independent laboratories, it is best to use Kaspersky Internet Security, Bitdefender products and scan with several similar programs.
Lack of free disk space
Owners of devices with installed Windows 10 often either save money by installing a low-capacity hard drive, or fill it with downloaded movies, unnecessary games, large files and do not monitor the availability of free space. Therefore, the OS may not start, since it is simply not enough space for work. You can clear it using the software installed on boot disks, or you can simply delete what you don’t need by viewing the contents using a file manager.
Errors when running programs or drivers
To remove the problematic driver you need to log in to safe mode. If it works, then most likely the problem is in the driver of some component or equipment or in the functioning of some program. You can either delete them or edit startup.