OK lets try this

Please download UVK to your desktop and install

Run UVK and select Repair system

http://i1224.photobucket.com/albums/ee362/Essexboy3/uvk%20shots/UVKfront.gif

Then select More fixes

http://i1224.photobucket.com/albums/ee362/Essexboy3/uvk%20shots/UVKrepair.gif

Run the following tasks

.Reset and fix Windows firewall.

http://i1224.photobucket.com/albums/ee362/Essexboy3/uvk%20shots/ukvfixes.gif