PC constantly shutting down

diamondfire

New Member
Hi all! I'm having trouble with my pc constantly shutting down then restarting.
A few weeks ago, I had a repair guy come out and look at my pc because it was making a grinding noise. He said the power supply didn't need replacing, it was just full of dust. (I had the power supply replaced 18 months ago). He cleared out the dust and it was running quieter.
But ever since then my pc constantly shuts down and restarts. It usually doesn't get past the welcome page before it shuts down and restarts again. If it does get to the desktop, there are no icons or taskbar. Anything can make it shut down, windows media player, any webpage, games. Usually it will load a game but shutdown about a minute into it.
When it starts up again I get a message saying "The system has recovered from a serious error". There are also white squares around the icons on the desktop :confused:
I've run disk defragmenter and disk cleanup. It shuts down during AVG scan so a friend put Spyware Terminator on there and it found a trojan horse. I got rid of that but can't remember what sort of trojan horse it was. I tried to do a system restore but it won't let me go back to last month when the pc was working. :confused:
I don't know much about computers. My pc is 3 years old, and kinda slow. It's a Mercury Eclipse 2000+ VIA Samuel 2 796 MHz 224 MB of RAM.
 
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