How to Reinstall MBR

The Master Boot Record (MBR) is the main part of your hard drive that boots to your operating system. Windows 7 has a command line utility that is a part of the Recovery Console. This command line utility lets you repair and reinstall the MBR section of the hard drive. The "bootsec" command fixes the MBR, so you can boot the computer after the MBR corrupts.

Things You'll Need

• Windows 7 installation DVD

Instructions

1. Insert the installation DVD into the drive and reboot. The Windows installation DVD is bootable, so press "Enter" when prompted to boot to the DVD.

2. Choose your language, time zone and keyboard settings. Click "Next." Click the link labeled "Repair Your Computer" in the next window.

3. Click the operating system you want to repair. For most people, only one operating system is installed, so click the operating system in the list and click "Next."

4. Click "Command Prompt" in the Recover Console window. This opens your Recover Console command prompt.

5. Type the following commands into the prompt to repair your MBR files:

   <br /><br /><br /><br />bootsect /nt60 C:bootsect /nt60 sys<br /><br />bootsect /nt60 all<br /><br /><br /><br />

   These commands repair your MBR, so you can fix boot issues with your Windows computer.

References

• BizznTech: How to Fix MBR in Windows 7

Resources

• Read this Article in Spanish