I have just recently been in touch with the Hijack This section of this forum, because I thought my defragging problems were related to an invading nasty. There, they checked my HJT log and found no problems, but told me to defrag in Safe Mode!
This I did, but....
the computer is divided into three virtual drives. Drives C: and D: have defragged with no problem. However, drive E: has problems, only 10% was defragged. Then appeared this message:
"Error defragmenting Drive E
Windows cannot finish defragmenting this drive because it has encountered a problem. Click Help and carry out the instructions for running ScanDisk, and then try defragmenting again.
ID No

EFRAG00205"
I did a thorough ScanDisk run of the drive and the message was "Scandisk didn't find any errors on this drive". However, there were "700,416 bytes in bad sectors".
I then restarted the defrag, and again only 10% was able to be defragged.
For your information, the machine details are Mesh 500Mhz processor, 512mb ram,14gb hard drive, running on W98se.
I look forward to your help, from a Muddler admiring of real techies.
TM