I've been having constant problems with windows update not working. It would download updates but would fail every time I tried to install them. This only started happening after I installed SP3, so I decided to try uninstalling SP3. Now that I have uninstalled SP3, Windows Live OneCare is unable to start anti-virus and spyware monitoring. I have tried stopping and restarting the service, as well as using all the repair tools for OneCare. Is there a way to fix this without having to re-install OneCare, if that will even fix it.