Repair boot loader / MBR windows 7

October 7th, 2011

If your mbr or boot loader is missing or broken ,you can use your windows 7 installation dvd or system repair disc to fix your boot loader and mbr.

1.Boot from your windows 7 installation dvd or system repair disc

2.Press any key when prompted

3.Select a language, a time, a currency, a keyboard or an input method, and then click Next.

4.Click Repair your computer.

5.In the next window,select Windows 7 ,then click Next

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

7.In the command line ,type the below 2 commands and press Enter one by one

bootrec /fixmbr
bootrec /fixboot

8.Click Restart to reboot your PC,then you should can get your boot loader / mbr repaired.

9.(Optional)If you dual boot your windows 7 with Windows xp,you need to use bcdedit to add Windows xp to your boot loader.

a)Open an elevated command prompt.

b)Type the following command,assume D: is the drive letter of your xp installation

bcdedit /create {ntldr} /d "Windows XP"
bcdedit /set {ntldr} device partition=D:
bcdedit /set {ntldr} path \ntldr
bcdedit /displayorder {ntldr} /addlast


4 Responses to “Repair boot loader / MBR windows 7”

  1. […] assumes your installed xp on Drive D: ,also if you installed windows xp after windows 7 ,you need to repair your boot loader of windows 7 […]

  2. Bo says:

    If you have a dual boot system and can only boot to one of the systems say XP, but not to Windows 7 the tool “Dual-boot Repair” can help – in one click.
    It repairs MBR, PBR and BCD automatically – no user input. See on
    Creating Windows loaders is also a one click task in “Visual BCD Editor” – nothing to specify !

  3. Roberto says:

    There are no good enough programs to fix the boot process when something goes wrong. Boot programs are unable to recognize files that belong to one OS or another. In my case no program was able to restore the boot process except one partition of windows XP. I had multiple partitions running before.

  4. Arch Parsons says:

    Great topic. I had 8 operating systems 2 Linux and 6 Windows OS’s in a successful, though complicated, multiboot system. Today the multiboot Windows menu stopped working totally. I tried to recreate it using EasyBCD inside Windows 8.1 but now the menu won’t work for either of the 6 Windows systems it displays, not even Windows 8.1 now. I would very much appreciate a suggestion as to how to at least get back into one of the windows systems where I might be able to use other recovery techniques.

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