Hard disk might be one of the most fragile hardware among computer components. Soft bad sectors are repairable by overwriting on disk with zeros, which can be done by bad sector repair software such as DiskGenius. When operating system tries to read or write data stored on these sectors and finds error correction code ECC which does not match content of the sector, that indicates that something is wrong and these sectors may be tagged as bad sectors. Logical bad sectors are sectors on hard drive that appear to not be working properly.

This type of bad sector cannot be repaired, but it can be prevented. For example, if your computer is bumped while its hard drive is writing data, hard disk is exposed to extreme heat, or some mechanical part fails, all these are likely to cause hard bad sectors.Īs to solid-state drive, bad sectors are the result of worn out flash memory cell or other defects. If hard drive's head touches the rotating plater, that area will be damaged. Physical bad sectors are a cluster of sectors of the hard drive that are physically damaged. There are two types of bad sectors - physical hard and logical soft bad sector. In fact, it is very common that disk used for a long time has bad sectors. These phenomena show that there must be bad sectors on the disk. Something weird will happen if the hard disk has bad sectors, for instance, operating system can't boot normally hard disk can't be formatted when you open a file, error is reported. A bad sector is a sector on a computer's disk that cannot be used due to permanent damage or an OS inability to successfully access itsuch as physical damage to the disk surface or sometimes sectors being stuck in a magnetic or digital state that cannot be reversed or failed flash memory transistors. There is no need to be panic when your hard drive contains bad sectors, you should always keep calm and follow this guide to get them repaired. How To Cut Head and Fix Bad Sectors WD HAWK Family

A few bad sectors do not indicate that hard drive is surely to fail, as some bad sectors can be repaired successfully. DiskGenius can do more! This article is devoted to explaining bad sectors and free bad sector repair tool, and introducing how to check and repair bad sectors using bad sector repair software.

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