Hello WConway,

Do you know how Great Arcade Hits got installed on your computer?

To ask for assistance in the Malware Removal Forum there is a FAQ.

It includes instructions in post #2 on how to provide the logs from Farbar Recovery Scan Tool and aswMBR, which are the logs used in the preliminary analysis.

http://forums.spybot.info/showthread.php?t=288

But first please list:
  • The operating system
  • Other security programs installed
  • Any other issues with the computer's performance


Best regards.