Hi all. Hope someone can help me with this? I need to do an xp repair install but have to uninstall sp3 cos my original disc is only sp2. My prob is this: Where on earth does sp3 install itself? I'v tried the normal 3 methods to uninstall it:- Use the "Add or Remove Programs" item in Control Panel, it does not appear here, not even with the updates box checked Use the hidden $NtServicePackUninstall$ folder. Get message saying, ''Cannot find folder''. Use the System Restore process. Cannot use this method as sys restore does not go back far enough. Yes, sp3 is DEFINITLY installed. Many thanks to anyone who can assist, Whitedog.