Windows 7 only performs a ‘Quick’ format: Note that all drive manufactures have an area located on the drive which contains spare sectors if they are needed. This remapping information is stored in the NTFS partition’s Master File Table (MFT) so there is no chance of writing a file to the defective sector. The advantage of performing a ‘Full’ format when a drive is being prepared for use is that if a bad sector is detected it is mapped out and a spare sector is mapped in to replace the defective sector or sectors. With a ‘Quick’ format only the MFT is created for the partition and it is assumed the partition does not have any sector issues. The disadvantage of a ‘Quick’ format is that bad sectors are not identified therefore they can not be mapped out. There are two types of formats, ‘Full’ or ‘Quick’ for creating NTFS partitions. My concern is now even more after reading this on the web: Do I run Disk Doctor first and then defrag or only Disk Doctor? Or whatever. I would appreciate advice on how to proceed from here. Removing meaning also from the recycle bin. I then removed about 110 gig from my hard drive. Could it be that during defrag it moved files onto bad sectors? I rebooted and corrected these. To my surprise Disk Doctor picked up errors again. I then ran Smart Defrag 2 and after that once again Disk Doctor. It picked up error and after reboot corrected it. This left me with about 120 gig free space. So I immediately went and removed about 20 gig from my hard drive. I am busy with a large project for a company and loaded a lot of data on my hard drive leaving about 100 gig free space. It works great as long as there are sectors left in the reserve pool.īut when that "reserve pool" is depleted, the OS churns along and merrily tries to write to bad sectors. Nowadays, the disk is managed by a microcontroller on the drive itself, and that microcontroller keeps track of bad sectors and "swaps in" good sectors from a reserve pool. In the old days, you could "mark" bad disk sectors so that they wouldn't be used. There are no similarities between what I did before and what I did now, except for running Smart Defrag with the "deep optimize" option selected, and then canceling it.Ĭould check disk be reporting something false? Did Smart Defrag just move something incorrectly and somehow Windows reads it as a bad sector? Is there any way to fix this, besides getting a new hard drive? 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.
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