Have you ever got the message saying ‘cyclic redundancy error found’, if yes then this error message comes due bad sectors that are present in the hard drive of the computer. It mainly comes when we overused and used old hard drive. Till now I think lots of questions comes to your mind, what are these bad sectors, what are their causes, how to fix them and so on.
A bad sector on hard drive is a bodily damaged part which can no longer be accessed by the operating system. When this awful part occurs to be a region where you have retained facts and figures, you get the 'cyclic redundancy error' as the functioning scheme cannot get facts and figures from that district. To check for integrity of written data, parity checking bits are written while storing data on a hard drive. The facts and figures may not be read due to inconsistencies of parity checking bits that are verified while composing and reading facts and figures from a hard disk.
The major cause for bad sectors is a decrease of magnetism of the hard disk surface in certain localities with time. Bad sectors may furthermore be caused by rapid physical shocks to the hard drive, rapid power shutdown and interruption of reading and composing procedures on the computer disk. A failing read-write head of a hard disk is another origin of bad sectors getting conceived. So hard disk repair is the only option left.
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