Me and my friend were reformatting his hd and its his only one, we went into command prompt and did format C: Then this comes up. "Format can not run because the volume is in use by another process. Format may run if the volume is dismounted first. ALL OPEN HANDLES TO THIS VOLUME WOULD THEN BE INVALID. Would you like to forse a dismount on this volume. Y/N I pressed y to try and continue but it said "Can not lock the drive, the volume is still in use. We also tried using the windows xp cd but it didnt completly reformat it it just cleaned it up and some of the files were still there, how can we go about completely reformatting it besides shaking it really hard(hehe jk)