A friend of mine has a computer with Windows 7. When logging in, a screen pops up saying "Validate copy of your Windows license." He had this a couple months ago and I was able to remove it with Super Antispyware. I ran the program again yesterday since the infection is back and it did not remove the infection. I ran Spy Hunter only to learn AFTER it was done scanning that I had to pay in order for the infection to be removed. I also tried Spybot Search & Destroy to no avail. The computer has Symantec installed and it can't seem to remove the infection. . I have looked at some different sites online and quite a few reference looking in "Programs & Features" as well as running Spy Hunter. I'd greatly appreciate any help that can be offered. Thank you.
I have already disabled System Restore and tried running these scans in Safe Mode with Networking.