Eveytime i try to clear the unused disk space i get an error message : Error signature EventType : BEX P1 Eraser.exe P2 : 5.8.4.0 etc etc etc. I'm running XP SP2 on a 3.2 Pentium Core Duo, 1 Gb of Ram and two 150 GB hard drives. I've tried running Eraser in Safe mode but got the same message?? Could anyone shed any light.