Uninstall Windows XP using command prompt

This tip will help you uninstall your upgraded version of Windows XP using the command prompt. This will only work if you have upgraded your operating system from a previous versions of Windows like Windows 98 Second Edition, or Windows Millennium Edition (Me) and now want to revert to the operating system that was previously installed on your computer.

Follow these steps to revert to the operating system that was previously installed on your computer:

Note: To perform this trick, you need to have administrative rights.

1. First boot your system in Safe mode by pressing the F8 button as soon as the BIOS screen appears.
2. Once you get into the Windows XP Safe mode, click on Start button and type 'cmd' in Run option then press OK.
3. At the command prompt, type 'cd/' command and press enter.
4. Now again type the command 'cd\windows\system32' and press enter.
5. Now type 'osuninst.exe' to start the uninstall process.

Once you give the above command, you can begin with the OS uninstall procedure. Follow the instructions on the screen to restore your previous operating system.