Computer shuts down and restarts after being idle for 20 minutes or so.

How do I stop my computer from shutting down and restarting in safe mode after being idle for 20 minutes or more.
WoodyunoAsked:
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sunray_2003Commented:
Does it happen only in safe mode ?

Check to see if you have any scheduler task running or any third party tool for doing this automatic restarting ?

Go to BIOS and disable Wake on LAn

Check for spywares and virus

Sunray
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sunray_2003Commented:
This may not solve your issue but try doing the suggestion

Black Startup Screen Is Briefly Displayed, Computer Restarts Repeatedly
http://support.microsoft.com/default.aspx?scid=kb;en-us;314466

Sunray
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sramesh2kCommented:
To start with, disable Standby/Hibernation in the unit [to see if it is the problem]. Then, try reinstalling the Power Management through Device Manager
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qfrenCommented:
or,


logged on as an administrator:
Use the System File Checker tool to scan all of the protected files on your computer:

-Click Start, and then click Run.
In the Open box, type sfc /scannow, and then click OK.

---

http://www.webtree.ca/windowsxp/repair_xp.htm
Click on How To Run a Repair Install

How to Perform an In-Place Upgrade (Reinstallation) of Windows XP
http://support.microsoft.com/default.aspx?scid=kb;EN-US;315341


mc
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Crash2100Commented:
If it doesn't do this in safe mode, you could try using msconfig to disable your startup items one by one and see if one of them are causing this.  If this does happen in safe mode, I would start to suspect a hardware problem.

Also, have you tried running check disk?

       chkdsk c: /r
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Windows XP

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