remove win vista/7 from dual boot system

How to remove Windows Vista and/or Windows 7 from dual boot system having XP.

I was having my P.C. with X.P. as well Windows Vista and Beta version of Windows 7 as a dual boot.
After some days if uses I stopped using Vista and Windows 7.
Now I wished to get rid of these Operating systems as they were using a lot of space on my Hard Disk and I did not needed them any more.
Then I searched for the solution of How to remove those Operating Systems without losing my Data and even without having to re-install my X.P.?
I think many of you people also have this problem of how to remove Vista and / or Windows 7 on a dual boot system with X.P.

Here is how to do it.

1> Boot your computer in to Windows XP.

2> Ensure you have the Vista DVD in the DVD drive.

3> Go to “Start” and “Run”. Type in “d:\boot\bootsect.exe /nt52 ALL /force” (without quotes, plus replace d: with the drive letter of your Vista DVD).

4> Remove two files (Boot.BAK & Bootsect.BAK) on your XP root folder (C: ).

5> Restart the computer, and you will notice the boot selection menu is gone.

6> Format the partition/drive where you had Vista installed.

credits:thirunarayanan