How do I delete everything on my computer Windows XP?

Select the Settings option. On the left side of the screen, select Remove everything and reinstall Windows. On the “Reset your PC” screen, click Next. On the “Do you want to fully clean your drive” screen, select Just remove my files to do a quick deletion or select Fully clean the drive to have all files erased.

How do I wipe my computer Windows XP without a disk?

Perform a System Reset

Restart the PC. Press your favorite key in the world when the message “Press any key to boot from CD” appears onscreen. Hit “Enter” at the Windows XP setup welcome screen. Press “F8” to accept the terms and agreements (after you’ve thoroughly read them, of course).