Roll back to the previous state. Damaged MBR bootloader entry, or system boot error for other reasons

The error occurs when booting Windows 7 is a mistake 0xc0000225. Info: The boot selection failed because a required device is inaccessible... The cause of the bsod is a damaged boot sector.

To correct error 0x225 you can use the recovery system.

Error 0xc0000225 in Windows 7

Let's start right away by checking the cables from hard disk, maybe one contact has moved away. Next, go to BIOS and see if HDD the system sees, then this is not the case. You can try, but this option is longer and more cumbersome, since on old system a sufficient number of programs have accumulated. not difficult, but then again, to customize everything for yourself, oh how difficult it is, well, I think you understand me. In our case, we need to restore the system.

We boot from, start system recovery, wait for the end of the search for problems, then fix the problems (it takes a long time to fix), but after all these actions, sometimes, the computer turned on from the same error 225.

The second option is to roll back the system. I will say before, it helped me, and after that, Windows 7 started normally. So, how to make this very rollback, that is restore last good configuration... Now, point by point:

1. We reboot the computer and as soon as it starts to boot, press the F8 key repeatedly, you should see a window like this:
2. In the list, select the item "Last Known Good Configuration (optional)" and press "Enter". My computer rebooted and everything worked.

Error 0xc0000225 in Windows 8

Using the partition manager program, you need to make the partition with the system active. Reboot and see:

Missing bootmgr press ctrl + alt + del to reboot

It's easier here, we re-assemble bootable USB drive and trying to restore the system. Across command line utility Bootrec.exe with start key / FixMbr, bootmgr has been restored. The environment has also been restored windows boot c using bcdboot.exe followed by the correct system partition.

Fixing Error 225 via Bootloader Repair

1. Booting from installation Windows disk 7.
2. In the recovery dialog, select the command line and enter the following commands:

bootrec.exe / FixMbr

bootrec.exe / FixBoot

bootrec.exe / RebuildBcd

Error 225 after cloning

After cloning Windows 7 to new hard larger disk, the system could not boot due to errors 0xc0000225... This error occurs because the ID partition hard the disk from which the OS should boot does not match the one specified in the HKLM \ System \ MountedDevices registry key.

To fix, follow these steps:

1. Boot from DVD Windows 7
2. Select the repair mode (Repair) and the system will make the necessary changes on its own, after which the ability to boot will be restored.

Sometimes a similar error occurs when restoring the operating system from an image created by data backup products, for example, Acronis True Image, CloneZilla, etc. The method described below has not yet been tested by me, but it can be found in the CloneZilla FAQ. Developers recommend before creating image of hard disk, clear all keys except Default from the HKLM \ System \ MountedDevices registry branch, and only then create an image.

Sometimes error 0xc0000225 may appear when starting your computer. With what it can be connected? This issue is related to a damaged boot sector. The reasons for this are:

1. Viruses.
2. Erroneous shutdown of the operating system.
3. There was a blow (if you accidentally dropped your computer, this may also cause this error to be displayed.

How to fix error 0xc0000225?

A banal reinstallation of the system may come to mind, but you should not rush this way. After all, after reinstallation, all data is deleted and everything needs to be re-configured, installed required programs, drivers, etc. Let's consider easier ways to solve this problem.

1. Way. It is necessary to boot the computer in the last mode good configuration.

To do this, you need to restart the computer and hold down the F8 key at startup.

This method is only suitable for Windows 7.

In other newer versions, this feature has been disabled. Microsoft apparently decided that it was enough to be able to diagnose problems.

After you have entered this menu, select Last Known Good Configuration.

If this method did not help, look at others.

Error code 0xc0000225 repair

Select "System Restore". The OS search process will begin. Then click on your OS and click "Next".

After the recovery process is completed, the computer will reboot and start with the fixed error, and if even this method did not help, go ahead.

After opening in the command line, you must enter the command "rstrui.exe" and press Enter.

Choose a restore point based on the date when your computer was still working without errors.

After that, the system will rollback and should start.

1. If all the above methods did not help to solve the 0xc0000225 status, then the option remains with reinstalling windows... This is described here, "How do I reinstall Windows?" ... After starting the installation of a new operating system, if errors also appear, then most likely the problem is with itself hard disk... Alas, in this case, only replacing the HDD with a new one will help, or you can try to restore the old one. If you have in your hard drive important files then you can special cable view this data,. Basically, this can be done, only the speed of reading and copying is not great.

HDD breakdown is a rare occurrence, but no one is immune from this. So go for it, solve your problem with error 0xc0000225.

0xc0000225 associated with a damaged boot sector. We must say right away that you have such a problem not from a good life, but clearly from misuse devices. We will not delay the moment of truth for a long time, so first we will find out why such a problem could arise, and then we will move on to solving it.

Why might there be a problem?

If you see this on your screen, then don't panic, there is a solution to this problem.

First, it should be said that this kind of problem is due to the fact that the boot sector of the computer or laptop is damaged. That is, it fails to start the operating system. Secondly, the cause of almost any problem on personal computer the work of viruses can serve. This malicious code could change something in the system itself at the program level. Of course, the error code 0xc0000225 at boot rarely occurs due to viruses, but of course it's worth knowing about it. Also, an error can appear as a result of an improper shutdown of the operating system (in any of its manifestations). For example, when installing updates, your computer warns you not to turn off your device. If you did this, then you can expect trouble - although, this is also not a fact.

Also, do not forget: if you accidentally (or on purpose) dropped your computer or laptop, then it is likely that some chip or block is damaged. Because of this, the problem under discussion may arise. Or any other external mechanical damage(for example, a shock) may be the root of the problem. Analyze what could have triggered the appearance of such a code, then it will be easier for you to solve your problem.

How to fix?

Universal method

There are several ways, so we choose the appropriate one based on the cause of the problem. If your case is not there, then you can try universal option bug fixes. It is important to note that it helps quite often, but not always. Therefore, if it does not help, then move on to others:

1. Now, using the arrows on the keyboard or laptop, move down to the "Last Known Good Configuration" item and click on it with the Enter key.
2. We are waiting for the system to boot up in working order. If this method helped you, then we can congratulate you!

Roll back to a previous state

1. Here you will need to do similar steps as in universal method, so problems and questions should not arise.
2. When you turn on the computer (when the manufacturer's logo appears at the very beginning), press the F8 key several times in a row to call special menu additional Windows options.
3. Next, we are looking for the item "Safe mode with command line support". Click on this menu item with the Enter key.
4. In the window that appears, you will need to type the command rstrui.exe and press Enter again.
5. The system will offer you options to restore to a previous state. We choose the one that suits you best. Pay attention to the date the restore point was created: this will give you a rough idea of ​​which option you should choose.
6. We press "Next" and, following the prompts on the screen, we are restored.
7. Be sure to wait until this process is complete, and then check the operation of your computer.

System image recovery

1. As in the previous way, you will need a Windows 7 or 10 installation disc, otherwise it won't work.
2. We insert our disk into the drive and boot from it. To do this, change the boot order in the BIOS parameters (initially there is your HDD or SSD, you need to move the installation disk to the first place). Note that the window will say “Press any key to boot from CD or DVD”. This means that you must press any button on the keyboard to boot from disk.
3. So, if everything worked out for you, then a dialog box with the installation of Windows will appear in front of you. At the bottom, click on System Restore, as in the previous instructions.
4. The computer will start searching for restore points, after which you will need to select the most suitable one and try to start from it. Be sure to wait for this somewhat lengthy process to complete.
5. If the 0xc0000225 error no longer occurs during boot, then remove the installation disk from the first place in the BIOS (as you did in the second paragraph).
6. Conduct a final check by shutting down and restarting your computer or laptop.

Boot loader entry MBR corruption or system boot error

1. Please note that here you will need an installation disk for the operating system Windows 7 or 10. If there is none, then create an image either on a disk or on a USB flash drive. Without this, there is no point in going further.
2. So, if the previous point is completed, let's move on. Loading from installation flash drive or disk and in the installation window of the operating system, click on the item "System Restore".
3. The search begins for existing problems and problems with the download. Do not under any circumstances interrupt this process. That is, make sure that the computer does not turn off. And if you have a laptop, take care of conserving battery power.
4. Then you will need to find the command line, where it is important to enter the following lines:

bootrec.exe / FixMbr
bootrec.exe / FixBoot
bootrec.exe / RebuildBcd

Reinstall Windows

If none of the above methods worked for you and did not help, then there is only the option of reinstalling the Windows 7 or 10 operating system. Of course, initially try to boot your computer or laptop in safe mode and save all important data from a local disk, since after reinstalling all the information will be deleted. It is worth remembering that if you have two local drives (by default - C and D), where the system is on drive C, and your files are on the second, then you can transfer the necessary data from the first drive to the second. Then, when installing the Windows 7 or 10 operating system on local disk C, all information stored on local disk D will be preserved.

Let's sum up

Today we discussed such a question: how to fix error 0xc0000225 when loading Windows 7 or 10. There are five most popular and effective methods solutions to this problem:

1. Universal
2. Rollback to previous state
3. System Restore
4. Bootloader entry MBR corruption
5. Reinstall Windows

If none of the proposed methods helped you, then you should contact a specialized center where the masters work. Perhaps your HDD is broken, although this is a very rare occurrence. But it's better to play it safe and rule out everything possible options... We hope that it did not come to this, and one of the above methods helped you. We share in the comments which method helped you, and how long you suffered with this misfortune. Have a good mood, dear readers! We wish you nothing else breaks and no problems arise, like error code 0xc0000225 when booting Windows 7 or 10.

See error 0xc0000225 in Microsoft Windows 10 when trying to boot your computer? This is a common mistake and a huge headache because it prevents the computer from booting at all. Windows displays an error with the message " your pc has failed to boot properly and needs to be restored" "An unexpected error has occurred" or " required device is not connected or unavailable". Windows system shows this error if it cannot find the correct system files to boot into (BCD). When you turn on your computer, the BCD tells Windows how to boot correctly.

This error is more common on drives that use the newer UEFI specification using schema GPT partitions... Since this error is related to corrupted system files, it often appears after updating the OS, for example from Windows 7 to Windows 10. It can also happen if your computer shuts down during important update, from malware attacking system files or even from faulty hardware. Let's take a look at how to fix error code 0xC0000225 in Windows 10. Follow the steps in order.

Create a Windows 10 installation disc

Like other boot errors, you cannot fix this problem from within Windows. As such, you'll need a handy Windows 10 installation disc for you to run the repair tools. Follow my instructions for. You will need a flash drive with at least 8 GB or DVD. After creating the installation flash drive, insert it into your computer. Next, you need to install a boot from a USB flash drive. Recommend referring to the manual like.

Automatic Windows repair

Step 1... After booting from installation disk Windows 10, wait until you see the screen Windows installations... Confirm your language settings, then press " Further". When you see the screen." Install"click the link below" System Restore".

Step 2... Next, you will see a menu of options; select " Troubleshooting", then " Extra options "and" "Let the process complete, and then restart your computer.

Sha 3... Try to boot normally. If error code 0xc0000225 does not appear, then you have fixed the problem!

Run System File and Hard Drive Checker

Step 1... If automatic Windows repair didn't work, you can try several important system scans on one's own. To do this, repeat the process described above to get into the system restore from the installation flash drive and select " Command line". (Troubleshooting> Advanced Options> Command Prompt.)

Step 2... Run a command that checks for corrupted or missing system Windows files and tries to restore them. Issue the command to the command line: sfc / scannow and wait for the process to finish. Do not close Command Prompt or restart your PC, but go to step 3 below.

Step 3... Run a disk check to. Use the following command, where C: is the local drive where Windows is installed.

Step 4... Once you run both of these scans, reboot and try to boot your computer again. Hopefully the error won't appear again.

Rebuild BCD

If you still have problems, next step which you can try is the recovery team. Boot again from the installation Windows media 10 and open the menu " Extra options"... This time also select " Command line"and issue the following commands one by one, pressing Enter after each:
bootrec / scanos
bootrec / fixmbr
bootrec / fixboot
bootrec / rebuildbcd

The first command scans your drive for compatible installations, which can help find a missing Windows installation. Commands two and three write the new MBR and boot sector to your disk. The last command scans Windows installations again after patches. Restart your computer again and check if the error message 0xc0000225 appears.

Install the active partition

Sometimes active section may get confused or not work correctly. Windows allows you to change the active partition so that you can specify which system to boot from. Run " Command line"from the installation flash drive, as done in the above ways and enter the following commands one at a time, pressing Enetr, carefully reading and see the picture below.

Diskpart - Run Disk tool Partition.

List disk - List of connected hard drives and flash drives. Remember the number of your disk. In my case, one Disk is connected " 0 ".

Select disk 0 - You need to select the hard disk on which Windows. By the above team, we found out what it is in my case. 0. If yours is different, then replace it.

List partition - List of partitions on the hard disk. You need to remember the number of the section with type "basic"and on which Windows is installed. Since I have two types of" Basic ", I roughly know how many GB the disk on which Windows occupies and remember the partition with the number 1 .

Select partition 1 - I select the partition that I remember above, and on which Windows.

Active - I make the section active.

Exit Command Prompt, reboot your PC, and check if your problem is fixed.

1. If you are still unable to boot, you should consider checking hard disk for physical failures. Make sure the drive cable is not damaged and, if possible, reconnect it to the connector.
2. Check if it's worth it RAM(RAM), there may be a lot of dust on it.
3. If all else fails, then just try to roll back the system to a working restore point, if you have one created.
4. Try to restore Windows 10 from the installation flash drive while keeping the files.

Error 0xc0000225 can pop up at any time, no matter what version of Windows is used on your computer - 7, 8 or 10, and you will experience the consequences of one of the common troubles. When you boot your PC, a window with a message in Russian or English language that the computer needs recovery and an error code. Whatever other users advise, do not rush to demolish the OS and install a new one. There are some more simple ways, with which you can get rid of the error 0xc0000225, about which and there will be a speech in this article.

Computer needs recovery

When booting a PC running one of the three versions of Windows (7-10), you may receive blue screen of death. The error code 0xc0000225 in the message indicates that it has been violated work hard disk. This could be due to damaged sectors or SSD files, as well as failure of the cable leading to the hard drive. What could be the reason for the incorrect behavior of the computer? Allocate the following:

• the consequences of a malicious code attack;
• incorrect shutdown of the PC;
• strong physical impact (system unit or the laptop has been hit, dropped, etc.).

How to fix error 0xc0000225

Of course, demolition and reinstallation of the OS can help fix the error, but then you will need to re-download necessary software(drivers, programs), make settings, etc. Therefore, in the beginning it is worth trying more painless methods.

Logging in with Launch Manager

Launch Manager last appeared in Windows 7. Microsoft has since ditched the tool, although in some cases it can be invaluable. So, when starting the computer, press F8 and see the manager window. In it, select the download of the last good configuration (if the menu is in English, then Last Known Good Configuration).

This may be enough to fix error 0xc0000225. If the problem persists, move on to the next method.

OS recovery

Choice desired point recovery

1. If you use 8 or 10 Windows version where there is no startup manager, try to restore the system. To do this, you need a flash card or disk with the desired OS.
2. We insert them into a USB connector or floppy drive and at startup Esc keys, F11 or F12 open the Boot menu.
3. Here we set the priority of starting the system with boot disk(or flash drives).
4. Then the PC will prompt us to press any key (any key) on the keyboard to start loading the OS from external storage.

At this point, you can reinstall Windows, but we will select "System Restore" in the lower left corner. Next, the PC will find us all the restore points, from which you will need to select the most suitable one and launch.

Be sure to wait for normal completion this process and do not interrupt it, despite the duration.

System rollback as a means of fixing error 0xc0000225

If the computer in a particular situation is able to start in safe mode, then you can roll back the system to recent changes... To do this, at startup, you need to enter safe mode with command line support. V different versions OS uses the following combinations:

• in Windows 7 - F8 and select the desired parameter;
• in Windows 8 and 10 - activating the restart button on the screen while holding down the Shift key. If the system does not start, then you will need to use again external drive(flash card), and when loading the OS from it, press the combination Shift keys+ F10. Also, the command line is called after exiting the installation menu from the external drive. Click in sequence "System Restore" - "Diagnostics" - "Additional. parameters ”-“ Command line ”.

OS recovery

In the command line, enter rstrui.exe. The PC will recommend a restore point or offer to choose any other of the saved ones. The system will be rolled back to the previous point and the computer will start working in normal mode without error 0xc0000225.

Recreate the bootable BCD file

If none of the above methods helped, try re-creating the Boot Configuration Data (in this file all information about operating systems and their launch settings). To do this, call the command line using one of the methods described in previous paragraph and enter bootrec / rebuildbcd. The file will be recreated and the PC should start up.

Updating the MBR Master Boot Record

The Master Boot Record (MBR) file is used to start the OS. You can try updating this bootloader. To do this, enter the following into the command line:

• Bootrec.exe / fixMBR;
• Bootrec.exe / fixBoot;
• bootrec / rebuildbcd.

MBR update

If everything is so serious that none of the methods helps, reinstall Windows. They did everything, but the problem remained unresolved and the error 0xc0000225 continues to pop up? Check the hard drive for integrity and performance. It may need to be replaced.

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