"Pci.sys Is Missing or Corrupt"

Restore the File by Using the Windows Recovery Console

Use the Windows 2000 Recovery Console to expand Pci.sy_ from the I386 folder on the Windows 2000 CD-ROM to the \%SystemRoot%\System32\Drivers folder on the hard disk. To do this, follow these steps:

1. Start the computer to the Recovery Console.
   1. Insert the Windows 2000 startup disk into the floppy disk drive, or insert the Windows 2000 CD-ROM into the CD-ROM drive. Restart the computer.
   2. Click any options that you have to have to start the computer from the CD-ROM drive if you are prompted to do so.
      
      The "Welcome to Setup" page appears.
   3. Press R to repair a Windows installation.
   4. Press C to start the Recovery Console.
   5. Type the number that corresponds to the Windows 2000 installation that you want, and then press ENTER.
   6. Type the local administrator password, and then press ENTER.
      
      NOTE: In some cases, the Administrator password is set to a blank password. In this case, press ENTER.
2. At the Recovery Console prompt, type map, and then press ENTER. Note the drive letter that is assigned to the CD-ROM drive.
3. Type the following at the command prompt, and then press ENTER
   expand drive:\i386\pci.sy_ c:\winnt\system32\drivers /y