Well…. Since that isn’t a good way to start off the weekend, let me tell you how to fix it!
This will work depending on what exactly the root issue is.
1) Boot to the Windows Recovery Console (boot from the CD and hit “R” for repair)
2) type the command bootcfg /rebuild
3) Confirm that it detects your Operating System
4) Type “XP” or something for a OS description
5) Type “/fastdetect” (without quotes) for the startup parameters.
6) Type “Exit” and reboot the computer.
Cross your fingers and hope it works!
–Luke