Fix MBR (Master Boot Record) Errors in Windows 10

You may not face boot errors that often but it is very common 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 simply 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 are a direct result of your intentional or unintentional actions like deleting important boot files in the system drive (C:), removing 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 couple ways you can access command prompt even if you cannot boot into Windows. The first one is useful when you don’t have a Windows installation media like USB or DVD. The second method is useful when you cannot use the first method for whatever reason and have a 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 Windows Recovery Environment. The good thing about this method is that you don’t need to have a Windows installation media.

1. To start off, turn on your computer and repeatedly press F8 or Shift + F8 while it is 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 by pressing 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 hard. 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 7 and 10 then use the below command. It will scan your system and adds 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 about using the above methods to fix boot errors in Windows 10.

1 thought on “Fix MBR (Master Boot Record) Errors in Windows 10”

  1. Is it just me, or have none of you people ever formatted and NTFS drive and then looked at it in a Partition program? because if you had you would have noticed that the drive that you just formatted without an OS on it, also has an MBR on it.

    Windows used to use FAT(File Attribute Table) when it formatted a drive, then Windows made NTFS the Master system, but to separate this File System from FAT, they called it MBR.

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