I need to repair my Windows 7 64 Bit computer because it will not run automatic updates and keeps giving me errors. I'm assuming something was corrupted from a virus in the past. The computer does not have SP1 installed (thats what I'm trying to get but windows updates fails) however the only reinstall disks I have to do the repair are Windows 7 64 Bit SP1. Can I use this even though I'm not yet at SP1 or will this cause problems? I'm trying to avoid wiping out the hard drive.