My last hard drive was a 320 GB Western Digital and now it is a Toshiba. I am running Windows Vista Home Premium and using the most recent version of Smart Defrag. Does this mean there is a (serious) bug in Smart Defrag that is causing this? Check disk doesn't seem to really fix anything, no matter how many times I run it. This is probably the start of yet another hard drive failing. I used the 'deep optimize' option, but I still ran into the exact same problem of it not doing anything. I decided to use Smart Defrag again, figuring my last problem was caused by something else. I run Vista's check disk every few weeks and I never have problems. I've had this hard drive for about 2 months and I have never had any problems. I ended up calling Dell and having to get a new hard drive, which was under warranty. It kept fixing bad sectors, but the same 4 kb would always reappear. I kept running complete check disks via the command prompt in Windows Recovery. It would just stick on the 'shutting down' screen, but it would never go. After that, it would not shut down at all. I ran a full check disk on a reboot and it fixed the sectors. When I noticed some strange start-up/shut-down behavior (mainly it being extremely slow), I performed a check disk. After about half an hour of it doing nothing, I pressed cancel and went with 'fast optimize.' It began to defragment and work its magic. I analyzed my hard drive and decided to use the 'deep optimize' option. Advanced System Care 3 is such a great product, so I decided to give Smart Defrag a try. Awhile ago, I decided to use Smart Defrag.

Iobit smart defrag 6