Introduction: How to Repair Your Mac Hard Drive, and Disk Permissions Using Disk Utility on Mac OS X Yosemite

How to repair your Mac hard drive, and disk permissions

We are using Disk utility on Mac OS X Yosemite.


successful20 made it! (author)2015-08-24

Would this help a slow starting MacBook?

DIY Hacks and How Tos made it! (author)2015-08-02

Nice tutorial.