The main thing you need to do is get out of windows... Perhaps the easiest way would be booting to something like a Linux LiveCD, BartPE, or something of that nature and deleting it through there. Safemode may even work...
__________________
Urban De-Development
* Athlon X2 4200 | 2048M RAM | 160G HD | 7600GT
* C2D T5250 | 2048M RAM | 160G HD | Intel x3100
* G4 1.33GHz | 512M RAM | 40G HD | Radeon 9200
|