Hello KatVec. If by Microsoft Updates you mean the new MSN Client version 10.5 (check by clicking Help and Settings then About MSN), then you should probably downgrade to 10.2 To do so, uninstall MSN in the control panel, then visit the Download page in the Member Center, and click the link that says "Running XP SP2 or lower click here". But if that's not the case, try running a system restore. It should be somewhere in Accessories. Restore the computer to an earlier time when you know it worked.