1. Try going to MS and updating to SP2 again, but close everything else out. You may have to put your firewall (if you are using a third-party FW) into Learning Mode; Windows FW is fine.

  2. Please try upgrading from the obsolete version of Avast you have to the current version of 6.0.1125.

  3. Have you done recent scans to make sure you are clean (no infections/malware)?

  4. What other security software do you currently have or did you have in the past on this machine including:

  • Antivirus (AV)

  • Firewall (FW)

  • Trial versions of AV, FW and other security programs

  • Other security software

  • If they were in the past, how did you remove them (the vendor’s uninstaller’s tool or another way)?