Fix MBR (Master Boot Record) Errors in Windows 10

Were you receiving weird boot errors and being unable to boot into Windows? Here are some ways you can fix MBR errors in Windows 10 & 11 OS.

You may not face boot errors that often, but it is prevalent than you think. There may be any number of reasons for Master Boot Record or MBR errors in Windows. In case of any boot error, you cannot boot into Windows, and you are essentially locked out of your system until you can fix the error.

If you ever find yourself with such annoying Windows boot errors, then here’s how to fix MBR errors in Windows in just a couple of steps.

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Reasons for Boot Errors in Windows

There are many reasons why you face boot errors in Windows. More often than not, boot errors in Windows directly result from your intentional or unintentional actions like deleting important boot files in the system drive (C:), removing the second operating system without first changing the boot record, modifying the boot record, boot file corruption, etc.

Note: the below methods to fix MBR will work on Windows 7 and 8 too.

Access Command Prompt from Windows Recovery Environment

To fix MBR errors in Windows, you first need to access the command prompt. There are a couple of ways to access the command prompt even if you cannot boot into Windows. The first one is useful when you don’t have Windows installation media like USB or DVD. The second method is useful when you cannot use the first method for whatever reason and have Windows installation media.

I will show both these methods. Follow the one that works for you and then proceed to fix Windows boot errors.

Without Windows Installation Media

This is one of the easiest ways to access the Windows Recovery Environment. The good thing about this method is that you don’t need to have Windows installation media.

1. To start, turn on your computer and repeatedly press F8 or Shift + F8 while booting; windows will boot into recovery mode.

2. In the recovery environment, click on the option “Troubleshoot.”

Fix Mbr Errors Windows 10 - Select Troubleshoot

3. Select “Advanced Options.”

Select Advanced Options

4. Here, select “Command Prompt.”

Select Command Prompt

You might be prompted to select your user account and enter the password for security reasons. Do those to continue. Once the command prompt has been opened, proceed to fix MBR errors in Windows 10.

From Windows Installation Media

If you cannot access the recovery environment with the F8 key, you can do so with the Windows installation media.

1. So, insert Windows installation media and restart your system to boot into it.

Note: if you cannot boot into Windows installation media, make sure that your bios boot priority is in proper order. i.e, first CD/DVD or USB and then the regular Hard Disk.

2. Click on the “Next” button.

Click Next on the installation screen

3. Now, click on the “Repair your computer” link at the bottom.

Click on the Repair your computer link

4. Select the “Troubleshoot” option.

Fix Mbr Errors Windows 10 - Select Troubleshoot

5. Next, select “Command Prompt.”

Select Command Prompt

Once the command prompt has been opened, proceed to fix MBR errors in Windows 10.

Fix MBR Errors in Windows 10

Fixing Windows boot errors is nothing complicated. All you have to do is execute a couple of commands.

1. First, execute the below command to fix Master Boot Record.

bootrec /fixmbr
Run Fixmbr Command

2. (Optional), If you are dual booting your system and other operating systems (like Linux) replaced the boot record, then use the below command to fix it.

bootrec /fixboot

3. Sometimes, the damaged or corrupted Boot Configuration Data (BCD) might also be a reason for boot errors. Use the below command to fix Boot Configuration Data.

bootrec /rebuildbcd
Run Boot Configuration Data Command

4. (Optional), if you are dual booting multiple Windows systems, like Windows 10 and 11, then use the below command. It will scan your system and add all the operating systems to the boot screen so that you can select the one you would like to boot into.

bootrec /scanos
Run Scanos Command

That’s it. It is that simple to fix MBR in Windows 10. Comment below, sharing your thoughts and experience using the above methods to fix boot errors in Windows 10.

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