system32\drivers\pci.sys missing or corrupt

March 1, 2010 at 05:52:41
Specs: Windows XP Pro, ACPI 1.0b
Just got my laptop back from the pawn shop and I now have all kinds of problems. first, this message apears, Windows can not start because the following file is missing or corrupt: system32\DRIVERS\pci.sys You can attempt to repair this file by starting windows setup using the original setup CD-ROM. Select "r" at the first screen to start repair.
I'm not sure how/why, but my bios password has been changed. I have tried to boot from my cd-rom drive, to no avail! I can access Boot Menue and safe mode, but not setup. I am pretty much a novice, so any response, laymans terms please.

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March 1, 2010 at 12:41:23
If you cannot access the BIOS due to a password change, you follow the manufacturers instructions for resetting your CMOS on your motherboard. On a desktop, it is usually a jumper that you move from one pair of pins to the neighboring pair, but may be a button or switch >IMPORTANT< ALL power must be off/unplugged (laptop battery removed). I assume that on a laptop it would be similar. Go to mfg. site support and search for 'resetting CMOS'. You might find many surprises when you finally gain access and repair, so you might consider completely reloading windows from scratch (if you have medium for all of your programs).

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