How to Fix System Errors with Mac OS X Snow Leopard’s First Aid

Mac operating system X Snow Leopard offers a First Aid pane. This OS feature of Disk Utility lets you check any kind of disk errors, as well as repair any errors that it detected. Here are the two exceptions when the buttons get disabled:-

1. The start-up disk: Disk Utility won’t repair the start-up disk, if you think about it then you came to know, because that drive is currently being used.

If you have multiple OS on multiple disks drives, you can boot from another Mac OS X installation on another drive to know your current start-up disk. Or you can boot your machine from the original Mac OS installation DVD and run Disk Utility from the Installation menu.

2. Write-protected disks: Although you are free to use the Disk Utility to verify Cds/ DVDs, but Disk Utility can’t repair them. You generally can’t repair a disk that are currently being used. If you’re running an application from a drive or you’ve opened a document that’s stored on that volume, you probably can’t repair that volume.

In order to repair or verify, you must be logged in as an administrator

You can also select to repair or verify the privileges on a disk. If face trouble in saving or moving the file then quickly checks drives for permission. However, you can’t fix disk errors on a boot HD, but you can repair and verify permissions on any drives that contains a Mac OS X installation.

To verify or repair a drive, follow these guides:

1. Access the Applications folder, and then open the Utilities folder. 
2. Open the First Aid pane. 
3. Select the target volume/partition from the list at the left. 
4. Tap the Verify Disk button 
 Snow Leopard checks the contents of the drive and displays any errors. 
5. Tap the Repair Disk button. 
 Snow Leopard verifies the contents of the drive and fixes the problems.

It’s a good practice to check your disks once every 2–3 days. If your Mac system is caught into a power failure or Mac OS X locks up, check disks after you restart your system. Mac Data Recovery software is now available online which will fix system error with Mac. No need to bother about any disk errors, within a fraction of minutes tool will repair disk problems and makes data accessible.