How do I uninstall Windows XP? In the Add or Remove Programs applet, there is no "uninstall Windows XP" option. The MSoft instructions say, "If you performed a new installation instead of upgrading, you cannot uninstall Windows XP. In this case, you need to perform a new installation of your previous operating system." There was no previous operating system in the VM. Does that mean I need to re-install Parallels to uninstall Windows XP?? Or is it sufficient to delete the VM? Thx