How to Completely Uninstall/Remove Windows XP?

Hi,

I would suggest you to follow the steps mentioned below to uninstall Windows XP from your system:
a) Boot your system in Windows 7
b) After booting to Desktop, click on Start
c) In the search bar type Disk Management and press ENTER
d) You will have a window which will contain all the disks on your system
e) In this Window ,select ‘D :\ drive’ as you have Windows XP installed  on D:\ drive
f) Select the option Format to uninstall/delete Windows XP from D:\ drive.

Note

All the data in the D:\ Drive will be deleted once you click on Format in Disk Management. I would suggest you to back up all the important data so that you can copy it once you boot in Windows 7.

After formatting the D:\ drive, I would suggest you to delete the entry the Boot entry for Windows XP in MSCONFIG (Microsoft System Configuration). To do so follow the steps provided below:

a) Click on start
b) Type msconfig.exe in the search bar and press ENTER
c) Select the TAB Boot in MSconfig
d) Then click on Windows XP Boot entry and Select the option Delete.
e) Restart the system  it should boot in Windows 7
For more information on MSCONFIG refer to the link provided below:

http://windows.microsoft.com/en-US/windows7/Using-System-Configuration

I would suggest you to follow the steps provided below to rebuild BCD (Boot configuration Data). To

Open WINRE refer to the link provided below:

http://windows.microsoft.com/en-US/windows7/What-are-the-system-recovery-options-in-Windows-7

a) Access Command Prompt from Windows Recovery Environment (WinRE).
b) Type the following and hit ENTER.
bootrec /FixMbr
bootrec /RebuildBcd
Restart the computer and check the result.

If the system does not boot in Windows 7 after uninstalling Windows XP refer to the article provided below:
http://support.microsoft.com/kb/927392