Laptop all of the sudden running games extremely poorly

polliem2014

Estimable
May 25, 2014
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4,510
I have a Lenovo Y580 with a GTX 660m in it. All of the sudden, games run extremely poorly. I'm running with the dedicated graphics card. I don't have a virus and I recently defragged the hard drive. I'm also running on the high performance battery setting. The only idea I have is that I messed up some hardware when I blew compressed air threw the fan that cools the graphics card. Thanks.