Win7 Fixboot Fixmbr Master Boot Record Repair

In this article, I will discuss the process of using the Win7 Fixboot Fixmbr tool to repair the Master Boot Record on a Windows 7 computer.

Consequences of Corrupted MBR

If the Master Boot Record (MBR) on your Windows 7 computer becomes corrupted, it can lead to serious consequences. One of the most common issues caused by a corrupted MBR is the inability to boot into the operating system. This can result in a completely unusable computer, leaving you unable to access any of your files or programs.

Another consequence of a corrupted MBR is the potential loss of valuable data stored on your hard disk drive. If you are unable to access your operating system, you may not be able to retrieve important files or documents. This can be a major problem for individuals and businesses alike, leading to frustration and potential financial loss.

In addition, a corrupted MBR can also lead to errors and system instability. Your computer may crash frequently, display error messages, or experience other issues that can hinder your ability to use it effectively. This can impact your productivity and make it difficult to perform even basic tasks on your computer.

To resolve these issues and repair the corrupted MBR on your Windows 7 computer, you can use the Fixboot and Fixmbr commands in the Recovery Console. These commands can help restore the MBR to its original state, allowing you to boot into your operating system and access your files once again. It is important to follow these instructions carefully to ensure a successful repair process.

Repairing MBR with Windows CD/DVD

Windows CD/DVD disc.

To repair the Master Boot Record (MBR) using a Windows CD/DVD, follow these steps:

1. Insert the Windows CD/DVD into your computer’s optical disc drive.

2. Restart your computer and boot from the Windows CD/DVD. You may need to change the boot order in the BIOS settings to prioritize the CD/DVD drive.

3. Select your language preferences and click “Next” on the Windows Setup screen.

4. Click on “Repair your computer” at the bottom left corner of the screen.

5. Choose the Windows installation you want to repair and click “Next.”

6. In the System Recovery Options window, click on “Command Prompt.”

7. In the Command Prompt window, type the following command and press Enter: bootrec /fixmbr

8. After the command has been executed successfully, type the following command and press Enter: bootrec /fixboot

9. Restart your computer and remove the Windows CD/DVD from the optical drive.

10. Your Master Boot Record should now be repaired, and you should be able to boot into Windows successfully.

Restoring MBR Without CD/DVD

To restore the Master Boot Record (MBR) in Windows 7 without a CD/DVD, you can use the Command Prompt. First, you will need to access the Command Prompt by booting into the Windows Recovery Environment. Press F8 during startup to access the Advanced Boot Options menu, then select “Repair Your Computer.”

Once in the Command Prompt, type the following commands:

1. bootrec /FixMbr – This command repairs the Master Boot Record.
2. bootrec /FixBoot – This command writes a new boot sector to the system partition.

After running these commands, restart your computer to see if the MBR has been successfully restored. If you continue to experience issues, you may need to use additional commands or seek further assistance.

Remember to always back up your important files before making any changes to the MBR or boot sector. This will help prevent data loss in case anything goes wrong during the repair process.

Running Bootrec.exe Commands

  • Bootrec /FixMbr: This command writes a Windows-compatible MBR (Master Boot Record) to the system partition.
  • Bootrec /FixBoot: This command writes a new boot sector to the system partition by scanning for compatible Windows installations.
  • Bootrec /ScanOs: This command scans all disks for Windows installations compatible with the boot configuration data and displays the results.
  • Bootrec /RebuildBcd: This command rebuilds the Boot Configuration Data (BCD) store by scanning for compatible Windows installations.


How do I FixBoot and FixMbr in Windows?

To FixBoot and FixMbr in Windows, you can access the “Advanced options” screen and open the Command Prompt. Then, type bootrec.exe and press “Enter” to see the available options, including /FixMbr and /FixBoot.

What is the difference between FixMbr and FixBoot?

The difference between FixMbr and FixBoot is that FixBoot uses DriveLetter while FixMbr uses a specific path called DrivePath to carry out its function. Both tools can resolve boot issues, but they target different components of the boot process.

How to repair MBR in Windows 7?

To repair the MBR in Windows 7, you can boot from a Windows installation disk and choose the “Repair Your Computer” option. Then select the correct Windows installation and use the command “bootrec /fixmbr” to restore the MBR.

How do I fix a corrupted boot in Windows 7?

To fix a corrupted boot in Windows 7, you can insert the Windows 7 installation disc and boot from it, then enter Safe Mode by pressing “F8” and selecting “Repair your computer” from the advanced boot options. Finally, choose “Command Prompt” under System Recovery Options to fix the corrupted boot.

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