Hello friends I am using assembled my computer with Gigabyte GA EP45-UD3L motherboard, 4 GB RAM, 500GB Seagate hard disk and processor is Quad core. I have also bought Colorful ATI Radeon HD5770 graphic card. I have recently upgraded my operating system with windows 7 and before that I was using windows vista in my computer. Now after installing windows 7 in my computer my computer started freezing randomly. Please help me out to fix this issue.
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