Hi guys, So i'm being faced with this annoying problem with my windows 7 desktop computer. So the problem I have is, at completely random times, while using the computer, everything will kind of freeze up and not respond, then all the programs and explorer crash, when the end process window appear, clicking end process just makes that little end process box unresponsive also. Now when this happening, the only way I'm able to shutdown the computer is by physically holding in the power button for a few seconds until it shuts off. When I do this however, for some reason, it wont turn straight back on as pressing the power button does nothing. I have to wait a few seconds before it turns back on. Once it turns on, it gives that typical, windows was not shut down properly message and gives some options from which I choose start windows normally. It then takes longer than usual, maybe a few minutes, to get through the starting windows screen. After that it either work normally again or starts being unresponsive again. It does it completely randomly, sometimes it will go days without doing it, even a whole week, and then BAM! It randomly happens, and sometimes it'll happen a few times in one day... Also, at first I thought it may be a PSU problem because of the way it doesn't turn straight back on after shutting it off, however i've tries 3 PSU's, ot still has this problem with all 3! I was thinking, could it be my hard drive beginning to die? I honestly have no idea guys, please help! Thanks!