So how can you repair your damaged MBR? Here are the steps to follow:
1. First, restart your computer with the Windows XP setup disk in the CD drive. If you don’t have your original disk, borrow one or download a ISO image from a torrent site.
2. When prompted, boot from the CD drive by pressing any key. If Windows loads automatically, you will first have to enter the BIOS setup and change the order of the boot devices to start with the CD drive.
change boot order
3. Once the setup loads, you will see the option to press R to repair a Windows installation.
repair windows
4. Once the Recovery Console loads up, you will have to type in a number that corresponds to your Windows installation. This is normally just 1. Press Enter and then type in the Administrator password.
recovery console
5. Now at the prompt, type in fixmbr. Your damaged MBR will now be replaced with a new master boot record and your computer should now be able to boot properly. Note that you may also want to run the fixboot command to repair the boot sector with a new one.
Also, make sure you only use these commands on a system with one operating system installed. If you have more than one operating system installed,
fixmbr and fixboot could mess up everything.Vervolgens kun je je Grub herstellen volgens deze methode: Herstel Grub 2 met een LiveCD
http://wiki.ubuntu-nl.org/community/Grub2, onder het hoofdstuk:
"Herstel Grub 2 met een LiveCD"
Vervolgens start je computer op, kies windows.
Je kunt natuurlijk ook alleen windows herstellen, maar probeer ook de grub, die neemt windows in het opstartmenu mee
Als je Windows XP opnieuw installeert ben je al je bestanden kwijt die op die partitie staat ! Probeer dus eerst alles te herstellen !