Download the All in one Repair Tool Run the program vista/win 7 users please right click and run as admin. Go to step 4 and create a backup of your registry this tool involves changing registry keys and it is just a good idea to bak it up.Now go to the start repairs tab and run it with the following boxes checked.When running this tool disable your antivirus.
Reset Registry Permissions
Reset File Permissions
Register System Files
Repair WMI
Repair Windows FireWall
Repair Internet Explorer
Repair MDAV/MS Jet
Repair Hosts Files
Remove Policies Set By Infections
Repair Missing Start Menu Icons Removed By Infections
Repair Icons
Repair Winsock & Dns Cache
Remove Temp Files
Repair Proxy Settings
Unhide Non System Files