I took one of my server hard drives for backup and maintainence to my stand alone desktop machine. I put Vista Ultimate 23 bit and I installed Paragon Partition Manager Enterprise Server 8.5. Now, I decided to do a defrag of that drive overnight and when I came to look at the machine, it was at sleep. When I turned it on, it came back from sleep mode, but the defrag is less half way done and displayed an error message saying the program needs to close. I am defragging the volume again, this time while Vista is restarted before starting up. Now, here is my risk. Did Vista's sleep mode CORRUPT my hard drives data when Paragon was STILL defragging the drive? Should I cancel the defrag and do a scandisk instead since Vista's sleep mode corrupted the drive? What should I do? http://www.youtube.com/judenihalmusic

I think I'd try to access the drive somehow and see if you can access any data. A live cd would be better to try so you don't write to it. I'd run Ranish too to see the partition state. As for what is going on it is hard to say. See what the live cd says first. Playing to the angels Les Paul (1915-2009)

I doubt very much that going to sleep corrupted the drive. It's much more likely that an error was encountered during the defrag and the error message was put out. Then when the system was idle for long enough, it went to sleep. I suggest that you run either: 'SCANDISK /surface' if Fat32 or 'CHKDSK /R' if NTFS.