Moved to VirusScan. In the user interface open Virus and Spyware Protection > Real Time Scanning and turn it off there, that doesn't work? It should. Run the Virtual Technician to see if it finds and fixes anything: http://mvt.mcafee.com/
Assuming this is Windows, make sure it is totally up to date including parts you may never use such as Internet Explorer. (McAfee uses it regardless of your default browser).
Or contact Technical Support, link below, it's free.
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Generally a lot of times, with Steam Games/Fox Hud there have been Artemis! Detections. By chance have you experienced any?
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