Wednesday, 13 March 2013

How to Uninstall windows vista on a multiboot system?

1. Boot into other Windows version. Suppose you have Windows XP installed along with Windows Vista, then boot into Windows XP.

2. Insert your Windows Vista Setup DVD in your DVD drive. Click on "Start button -> All Programs -> Accessories". Right-click on "Command Prompt" and select "Run As Administrator". If you are prompted to enter password, enter the password and continue. You can also open Command Prompt in Administrator mode by typing "cmd" in Startmenu Search box and press "Ctrl+Shift+Enter".

3. Now provide following command: [DVD_drive_letter]:\boot\bootsect.exe /nt52 ALL /force and then press Enter. Suppose your DVD drive letter is F:, then provide following command:

F:\boot\bootsect.exe /nt52 ALL /force

4. Eject the Setup DVD and restart the system. Now your system will start in Windows XP automatically.

5. Now you can safely delete Windows Vista folders to reclaim the disk space:
Program Files

You can format the whole partition too if its not the boot partition.e.g. if your Windows Vista was installed on a partition other than C:, then you can safely format that partition but if it was installed on C: drive, then don't format it. Just manually delete the above mentioned folders.

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