By Gakusha
 The most common problem among Hard disk drives is bad sector. There are two types of bad sectors: logical and physical. While logical bad sectors are easily fixed using particular software, physical bad sectors can be irreparable. But it doesn't mean there is absolutely no hope. There is still a chance to recover them depending on how "deep" they are. So, below I am going to consider only physical bad sectors, their symptoms, reasons for appearing, types and ways for possible maintenance.
There are mainly two symptoms you can come across with:
1. Blue screen of death appears often showing the error code indicating that a memory read attempt failed. It follows with inevitable restarting and the next blue screen follows pretty soon with similar error code again. The same message is displayed when there is a problem with DDR memory. But memory modules are easily replaced, or even repaired by replacing the bad chip.
2. Operating system doesn't boot with a message showing that some system files can't be found.
One of the reasons for bad sectors is that some areas |
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