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System32\DRIVERS\pci.sys missing or corrupt

Discussion in 'Windows XP' started by 4elementsrule, Jun 18, 2011.

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  1. 4elementsrule

    4elementsrule Thread Starter

    Joined:
    Aug 26, 2007
    Messages:
    6
    Hi everyone,
    I got the following message: System32\DRIVERS\pci.sys missing or corrupt. It seems unlikely to me that the problem has anything to do with anything extra hardware I've installed since the only thing I ever use is an external HD which hasn't even been connected in months. In any case, I haven't any idea how to fix this. Safe mode, and every single other option that comes up after an "unexpected shutdown" doesn't work. It may load a few files but then stops and does the "System32\DRIVERS\pci.sys missing or corrupt."

    I do have the CD's that came with it. I haven't done the complete system reinstallation because I have some files that I'd really prefer not to lose. Is there any hope?

    Thank you for any help you can offer!

    Sarah
     
  2. Jack Hackett

    Jack Hackett

    Joined:
    Nov 19, 2006
    Messages:
    1,938
    Boot from your XP installation CD
    when the Setup screen appears select the second option by pressing R to enter the Recovery Console
    once you have selected your Windows installation and logged in (using a password if you have one set) type these commands in (pressing enter key after each line)

    Type MAP to determine the drive letter assigned to the CD-ROM. in this example I have used the letter D, yours maybe different but MAP will tell you

    Type expand D:\i386\pci.sy_ c:\Windows\System32\drivers /y

    You should receive a message that says:
    pci.sys
    1 file(s) expanded.


    Type exit
    now reboot.



    note: the above is off the top of my head, but Im pretty sure the command is correct
     
  3. 4elementsrule

    4elementsrule Thread Starter

    Joined:
    Aug 26, 2007
    Messages:
    6
    Thank you soo much!

    My friend had a go last night, and now when it turns on, it asks which OS I want. It shows me three versions, Microsoft Windows XP Home Edition, XP Home Edition 1, and XP Home Edition 2. That's not good having three is it?

    :( Now it's got another problem:

    System32\DRIVERS\isapnp.sys missing or corrupt

    Do I do the same thing as you suggested but use the file name of this problem? And I have a bad feeling I'm going to have to do this for each drive file again.
     
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