HP Pavilion with 2 drives each 120G. One drive has Vista on one partition (C) and a recovery set in the other (D). The second drive I originally partitioned to 2 x 60G as Drive (E) and (F). No problems with E. Drive F was showing no files in explorer but registering 30G used in My Computer. Efforts at reformatting failed all down to the insistence that the drive is in use by another program. I have tried 1. Computer manager; 2. MSDOD command; Booting up a Windows XP Pro CD to force a format on F (it told me there were no HD's on my computer); Booting up a Vista CD to force a format on F - this removed the 30G in use; 4. Loading Vista on C in safe mode. Help I have Partition Magic and Drive Image available.