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How to Fight Corruption on Mac Hard Drives and Prevent Major Data Loss Disasters

Hard disk corruption sometimes becomes a recurring problem and Mac users are well acquainted with the signs of its aftermath. A hard system restart may create bad sectors on your disk or disrupt the on-disk data structures, making your vital data inaccessible. Other cases of corruption include application crashes. A third-party software may malfunction, causing serious damage to your Mac disk and leaving you in a state of irrevocable or catastrophic data loss. To recover your lost or inaccessible data in such circumstances, you should go for Mac recovery through advanced third-party software.

Let us consider a practical case of Mac hard disk corruption. Suppose you are using Macbook Air and the notebook takes much longer to start up when booting in the normal mode. To add to this, the safe mode start up takes about an hour. You frequently face problems and a kind of erratic behavior on your portable machine. When you try to verify and repair the disk permissions by running ‘Disk Utility’ in safe mode, you end up with no success.

You also attempt a disk repair by booting from an external DVD, but cannot see the programs loading for a long time. When the disk check is completed, you get the following output:

“The volume Macintosh HD was found corrupt and needs to be repaired.
Error: This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk.”

Such behavior is usually seen if the file system on your Mac hard disk is damaged. In these circumstances, ‘Repair Disk Permissions’ would not help. You are required to perform disk repair through ‘Disk Utility’ after booting your system from the Install DVD. You can try booting it into single user mode, as it is a read-only mode. However, the MacBook does not have a drive to read discs. To sort out the problem, you can simply use an Apple SuperDrive. You need to insert the Install DVD into this external SuperDrive and perform repair using Disk Utility.

If the above method fails to repair disk corruption, you should take help of professional Mac data recovery software. These tools allow you to perform safe and precise recovery of data from corrupt HFS, HFS+ and FAT file system partitions. Additionally, they support both Intel based Mac and Power PC.

Author Bio:- The author is a Mac OS X users and doing research on Mac Data Recovery . She is also working on Data Recovery MacSoftware.

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