I had overclocked by Core 2 Duo cpu. I though this would extend the cpu performance while playing game. It worked well for 20 minutes then the system crash with blue-screen. After that I removed the overclocking software from the system and using it at default settings. But the system is very slow compare to what I was getting before. It takes some minutes to open a app when I double click on it. I cannot navigate between applications also. What has happen. The cpu usage remains low.
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