Posted April 21, 201410 yr My Dell Dimension 4700, running XP Home, will not defrag. It stops the defrag and gives a BSOD saying that a process or thread crucial to system operation unexpectedly terminated or exited. I ran checkdisk with both options checked. Everything seemed to be good. I ran HD Tune (Freeware), and scanned C:. A quick scan showed no bad blocks, a full scan showed about 40 bad blocks. I'm assuming the bad blocks somehow have corrupted data which causes the defrag failure. How do I determine if my bad HD blocks are corrupted data or are physical damage to the disk? How would I repair corrupted data? How would I repair physical damage? Continue reading...
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