When you start Windows, you receive an error similar to:
File is missing or corrupt: C:\Winnt\System32\Drivers\Pci.sys
When this happens you should restore the file using the Recovery Console or perform a repair installation of Windows.
To restore the file do the following:
1. Start the Recovery Console.
2. Select the installation you wish to access.
3. Type the administrator password.
4. Type MAP to determine the drive letter assigned to the CD-ROM.
5. Type Expand <CD-ROM DRIVE:>\i386\pci.sy_ c:\Winnt\System32\drivers /y. You should receive a message that says:
pci.sys
1 file(s) expanded.
6. Type exit and reboot.
*NOTE: c:\winnt should be replaced with the location of your Windows installation.
Related Tips:
How to Perform a Repair Installation of Windows XP
Windows Recovery Console Commands
System Recovery Options in Windows Vista
Common PC Error Messages
Understanding Blue Screen or Stop Errors
