This is urgent because:
A. I have to unlock this GPU so I can play optimally in a tournament coming up
Well, many would debate on the 'urgency' of that, lol
Anyway, in addition to either Avast/AVG/Avira also download and run malwarebyteshttp://www.malwarebytes.org/
You shouldn't be running your rig without any protection anyway... so even if you have no malicious code lurking somewhere you'll at least have a layer of protection in the future.