My Gateway desktop computer with Win7-64 bit, has started to shut down by itself. I noticed this happening a few months ago and figured it might be due to overheating. I cleaned out the fan areas and installed Speedfan to see what the temps are. The CPU seems to be running around 35-39 C. I can tell when the pc is going to shut down because shortly before it happens, the screen freezes, the mouse won't operate, and then the tower shuts off, but the screen still has the last image on it. I can start it right away and it works fine until the next shut down which could be a week away or only a few hours away. Naturally, the 1 year warranty has just expired and the Gateway techie says I should do a system recovery and if that doesn't work they'll fix for around $200!! Does anyone have any suggestions? Thanks.
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