When you start Windows XP, you receive an error similar to:
The application or DLL C:\Windows\system32\winspool.drv is not a valid Windows image. Please check this against your installation diskette.
This behavior is symptomatic of a corrupt Winspool.drv file.
To resolve this behavior:
1. Open a CMD.EXE window.
2. Type the following command and press Enter:
ren %SystemRoot%\System32\winspool.drv winspool_drv.old
3. Shutdown and restart Windows XP.