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Windows 8 PC locks up/hangs

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Last response: in Windows 8
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Hi, my pc on win 8 locks up from time to time, usually when a browser (chrome, firefox) is open. i can move the mouse, but clicking anything doesn't produce a response. i can get to the task manager and it'll show the CPU up past 92%+ and the "up time" will freeze. After a while (around a minute, sometimes more) everything returns to normal, the up time starts counting again and the cpu returns to around 30-50%. Any idea what might be causing these frequent lock ups?

More about : windows locks hangs

you will need to see if there is a event log entry at the time of the lockup. It could be many things, the last time I had this happen it was caused by a bug in the firmware of my solid state drive, the system would lock up for 60 seconds while the firmware ran its broken trim and garbage collection routines. I had to update the SSD firmware and that fixed my problem.
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