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I need ideas as to why this Windows XP system shutdowns. I've edited all the power options to always on. Is there anything else that could maybe be overwriting that?

No crashing. Just after x amount of time it shutdowns. No power spikes or any UPS No hardware changes No software changes No over heating Nothing is running when it decides to shutdown

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This question is too vague. When and how does it shut down? What is it doing when it shuts down? Is it actually doing a proper shutdown or is it just crashing or cutting off? Please edit your question to provide details. –  Shinrai Jun 5 '12 at 17:26
    
We need more info. This is not a good question which can be answered so if you really need help edit it and provide the info like when you have get started to see this error and any new install program any hardware failure etc? –  avirk Jun 5 '12 at 17:28
    
Added more will add more as I can –  Rachel Nark Jun 5 '12 at 17:29
    
When it started to do this? –  avirk Jun 5 '12 at 17:34
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Take a look in the event viewer system log. Look to see if there is anything referring to the shutdown or an error after restart saying the previous shutdown was unexpected. Two options I see - something is telling your PC to shutdown (scheduled task) or it could be overheating. –  uSlackr Jun 5 '12 at 18:35

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