One of the functions of a disk format is to mark bad sectors as unusable, but how does this interplay with the reserve sectors mentioned above?īy doing a full (non-quick) format, you force the drive to touch every sector on the disk. When a physical defect on the disk surface is encountered, the drive will silently mark that specific area as unusable and instead write the incoming data to a reserve sector it keeps unused for precisely this occasion. The short version is that modern hard drives tend to not show their bad sectors anymore. What should I do now? Should I still keep using it because it seems to be fine now or should I RMA it and get a repaired/refurbished drive since it is still under warranty? In addition, I used to not be able read the drive at all and it would cause windows disk management, file explorer and sometimes it would cause the bios to hang on my computer. I tested the drive with different software other than seatools to get a second opinion and it passed those tests too. Now the drive somehow can pass any tests I throw at it. All of a sudden after I deleted all the partitions on the drive and reformatted the drive after backing up the data on the drive. When I try to run fix-all fast and fix-all long on the drive to try and fix the bad sectors it fails. I ran these tests from two different computers both from inside Windows 7 and Windows 10 and using sea tool for dos. I could access the data on the drive without any problems. It would however to pass the short generic tests. When it failed tests sea tools would warn me about having bad sectors. The drive used to fail the short drive self-tests and the long generic test.
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