How to repair a disk with the Disk Utility on MacBook
If you have a problem with your MacBook computer, or if you start your computer and see the application Mac OS X Utilities, you may need to repair the disk. To repair the disk of your MacBook with the Disk utility you must follow the following steps:
Steps to follow:one
Select Disk Utility in the "Mac OS X Utilities" panel and select it. To find this option you must open the spotlight and look for "utilities of ..."
two
A floating window will open with the Disk utility and then select the disk you want to repair.
3
Select the disk or partition in the list on the left, and then click on the First help tab.
4
Click on "Repair Disk" of the floating window that is open to finish the process of repairing the disk you want to recover.
5
If Disk Utility can not repair the disk, back up as much information as possible and then follow the instructions in "Repairing, restoring or reinstalling Mac OS X software"
6
For information about Disk Utility and its options, consult the Help Center or open MacBook Disk Utility (in the Launchpad Utilities folder) and select Help> Disk Utility Help.
Tips- If you can not fix the MacBook disk with the functionality of "Disk Utility"