

I usually just hit “Repair Disk” and let it do its thing. Here you can verify/repair the condition of the disk. Select/Highlight your main hard drive partition (the one you want to speed up) in the left side of the window, and click “First Aid” to get to the repair window. To get started, select the “Disk Utility” option, then click continue in the bottom right corner. Once your computer has booted up from the Recovery Hard Disk you will see Utilities Window.

Your computer will boot from this second partition, leaving your main partition unmounted, so you can perform maintenance. To restore your permissions, click the arrow for “Recovery HD”. Lion/Mountain Lion creates a very small “Virtual” hard drive, that you can boot into instead of your normal hard drive and operating system, that lets you perform maintenance operations. But when you hold down the ALT key, your telling your Mac that you want to see what other devices you can boot. When your Mac boots, it selects the regular hard drive automatically. When you installed Lion/Mountain Lion, it created a rescue partition for you, and to access this partition, and speed up your mac, all you gotta do is hold down your “ALT” key, and turn your mac on! Once you here the “BONG” sound, you will see this: The good thing about OS X Lion/Mountain Lion is that you don’t have to go and find your install disk to do this anymore (Like you used to have to do with Snow Leopard, Leopard and Tiger). **NOTE** – It can take a while for this operation to complete, so make sure you have plenty of down time before tying up your computer with this procedure. It’s called “Repair Permissions”.Ī few years ago I was involved heavily in editing high def video for a motorsport operation, and it never ceased to amaze me how much quicker and happier my mac pro was after a permissions repair. I am sure there are dozens of methods, and dozens of programs and apps that do wonderful things for your Mac computer running OS X Lion/Mountain Lion, but in my opinion, the folks at Apple have built in the best, quickest, and easiest way to give your Apple computer a boost.
