This tutorial works only on Windows Vista
1: Boot into Windows Vista
2: Once Windows Vista is loaded, click on Start, then go to Control Panel and view in category mode
3: on the search box, type "partition" (without the quotes), and click on "create and format hard disk partitions" under Adminstrative tools (You may have to click "Continue" on the UAC [user account control]).
4: Click on the partition that contains Ubuntu or any other Linux distro, and delete that partition.
5: Obtain a Windows Vista installation DVD (if you don't have one, don't panic! You can make one of the Vista recovery CD/DVD. Just go to
http://neosmart.net/blog/2008/window...disc-download/ and follow instructions.), insert the DVD and reboot the computer
6: Once restarted, the computer should boot from the CD/DVD drive. If not, check the boot list under BIOS and make sure that the option to boot from the CD or DVD is on the top of the list, save the settings and restart.
7: Once booted from the CD or DVD, select a language and keyboard layout for your region, then under the menu, click on "repair your computer"
8: Select Windows Vista
9: Click on "Command Prompt"
10: type "bootrec.exe /FixMbr" (without the quotes) and hit Enter.
11: reboot the computer and eject the Windows Vista install disc
Voilla! Linux is gone as well as the GRUB installer and you are left with Windows Vista.