Hello friends I am using assembled computer with ASRock Extreme4 Z68 motherboard and Intel i5 2500K processor. In my computer I was using windows vista and all the things were going fine. Before some days I have upgraded my operating system with windows 7 and after that I get one problem. Now whenever I play any game in my computer at that time get artifacts in it. I don’t know what went wrong nut this problem is very irritating for me. Please help me to solve this.
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