Sectors bad bad sectors are usually physical damage of an arc of the disc surface. If the head several attempts to read from the same area of disk multiple times but fails, it produces the sound. This can occur even if the head is not able to calibrate the media servant with the title on the progressive weakening of the magnetic domains on the platter, the drive continuously reset causes. Scan the disk surface, where conditions> The hard drive is not bad. This helps prevent any bad sectors and mark its system of writing new data on selected sectors of the disk.
Head Crash This is a physical damage of the disk platter when the head of a hard disk scratches the surface des This is the result of the grinding sound you hear when this is the case. First, turn off the computer and not the power to try. Extend the power to the hard disk is only because there is morecomplications and cause further damage. Consult a data recovery company (http://www.datasavers.com.sg) immediately and avoid dismantling the disk to repair the problem yourself. Operating without the right tools and a test environment can cause further damage that complicates the data retrieval.
mechanical failure is a physical damage and these sounds can be from a malfunctioning spindle, Read Write head or loose components. Back up dataimmediately if it is still possible, data on the hard disk access. The hard drive is almost at the end of his life and will no longer work at any time .. If your disk stops spinning after a period of clicking noise, you can send the hard drive for reliable data recovery firm (http://www.datasavers.com.sg) to restore the data.
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