Windows XP Operating system not found

Sep 4, 2008
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My computer was idle the other day and when i came back to it the screen was black and the message 'operating system not found' was displayed. I have not added a new hardware or software recently. When I tried to reinstall windows it said: the problem seems to be caused by setupdd.sys. It won't let me go into safe mode, I can't disable caching or shadowing in bios. Technical information:
STOP: 0X00000050 (0XE16BBED0, 0X00000000, 0XF84C19A8, 0X000000001)
setupdd.sys - Address F84C19A8 base at F849A000, datestamp 41107C8F

Can anybody help with this problem. Thank you in advance



I'm not weird, I'm a limited edition.
Mar 5, 2002
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That 'stop' error is usually associated with bad ram ... try swapping it out for known good stuff, or if you have 2 sticks installed, take one out and try it, then replace with the other & try again.

It can be any amount of other 'problems' also, usually hardware ... good luck.


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