XP laptop goes into an endless hibernation loop

Laptop running XP continually goes straight into hibernation just before log in screen.
I do not think it is power or battery because it will run fine for hours if booted from CD.
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Remove the battery and start it on AC power only try this
What is the make and model of the laptop? Is it running XP SP2? Has it always done this, or is this new behavior? Can you get into the BIOS to check settings there?
Try booting into safe mode by pressing F5 during boot. See if the problem continues.. If all is well, continue logging on in safe mode, then go into your power settings by going to the control panel, power setting and uncheck the box that says enable hibernation so hibernation will be disabled. Restart the computer in normal mode and see if the problem persists.
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nobusbiljart fanCommented:
or try a system restore from safe mode
ozgaryAuthor Commented:
Cannot boot to safe mode
BIOS was checked previously.
Already tried to remove battery etc.
I think the OS is simply corrupt and I will have to reload OS.
Thanks all - I thought that there may have been a simple solutionj.
Rather than a complete reinstall try a Repair installation.
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