Hard disk is a storage device in your system which is full of various sectors. It stores all your important information such as text, photos, videos, audio, etc. However at times due to several unexpected cause, some sectors of your hard drive gets damaged. These sectors are bad sectors of your hard drive, which can no longer be written to. As a result, you have to encounter Hard disk CRC error in Mac. The occurrence of this error restricts the users to access there important files and folders. It also starts reducing the memory of your hard drive.


To avoid, such problem it becomes necessary for users to identify the bad sectors in hard disk. This task can be performed by using FSCK, CHKDSK utilities. With this, the bad sectors are marked as unusable by the application and your OS will not save any of your data in it. When your system detects any bad sectors then it means that it has run out of spare sectors where you can not write any data. The appearance of Hard disc CRC error makes your system performance slow and also takes longer time to save any document in Mac.


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There are several reasons which are responsible for the occurrence of error like firmware problems, hard drive failure, corruption of hard disk program, excessive heat and condensation and many others. You can not repair bas sectors in Mac but by following the below mentioned steps, you can inform the system about these sectors. With this your OS will not save any more data in it.


  • First of all press the start button and then select My computer
  • Next, highlight the hard disk drive which you want to scan
  • Open file menu and then select properties
  • Then, open the tool tab and check now button.

These steps will mark the bad sectors as unusable in Mac. But in case, if you have already lost your data due to Hard disk CRC error, then in such cases, powerful Mac data recovery software is the only way which can help you to restore your valuable data in Mac.


System Requirements


Processor: Intel Power PC (G4 or later)

Operating System: OS X 10.6 Snow Leopard, 10.5 Leopard, 10.4 Tiger, and 10.3.9 Panther

Memory: 256 MB

Hard Disk: 40Mb


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