I have a dual boot system – Windows 7 and Ubuntu. The other day I wanted to remove my Ubuntu installation for some reason, but this also called for restoring the Windox 7 Master Boot Record, after removing grub. So here are the steps if you also face such a situation.

1. Boot your computer to the Windows 7 DVD. At this screen choose to install now.

2. Select your language and click next.

3. Click the button for “Use recovery tools”.

4. Then select “Command Prompt”.

5. When open, the command prompt will look like this:

6. The command we will use, bootsect.exe, is in a folder (named boot) on the DVD. We need to know what drive letter has been assigned the DVD drive to access the folder.

 

Code:
—–
Type: diskpart and press Enter

Type: select disk 0 (zero) and press Enter

type: list volume and press Enter
—–

In this screen shot, the 7 DVD is letter: G

7. Use your DVD drive letter and

 

Code:
—– 
Type: exit and press Enter to close Diskpart

Type: G: (use the letter of your DVD drive) and press Enter

Type: cd boot and press Enter

Type: dir and press Enter 
—–

to verify that bootcect.exe is there (if you really need to)

8. To restore the “bootsector code”:

 

Code:
—–
TYPE: bootsect /nt60 SYS /mbr and press Enter 
—–

NOTE: If this method fails to restore the MBR, you can try the bootrec command as it is also a tool for repairing the MBR.

9. When completed successfully,

 

Code:
——
Type: exit and press Enter
—–

This will close the command prompt window.

10. Now select Shut Down or Restart

11. Then you can reboot your computer into Windows.