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Step 1
Open the Disc Utility program, which is located in the "Utilities" folder of your "Applications" directory. Highlight your hard drive from the list and have the program repair the permissions. This is an easy way to correct some common computer errors which could be slowing your hard drive down.
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Step 2
Look for a program to defrag your computer. There are some free utilities that can work on your Mac hard drive, but you should seriously consider purchasing a program because of the stability and support that comes with a purchased product. Defragging programs include Disc Warrior and iDefrag (see Resources below).
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Step 3
Take steps to back up your data before you defrag a Mac hard drive. Data loss is unlikely with well-respected programs, but defragging is a long and extensive process, and you can never be too safe.
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Step 4
Plan to run your defragging program during a time when you won't need to use your computer. No matter which program you decide on, it can take up to several hours to defrag a Mac hard drive. Some companies even suggest running the program overnight.
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Step 5
Notice whether defragging your Mac hard drive improved your computer's performance. Opening applications and large files should be faster if only by a few seconds. If your hard drive is more than 75 percent full, the performance increase may be more noticeable.











Comments
kirktalon said
on 10/31/2009 Unfortunately, Mac does not come with defragging software AND I have to still defrag using MacOS X. I don't know where that myth came from but it can't be true.
SuperDuper is a free hard drive cloner that will defrag the copy your hard drive as it copies it to the other hard drive. Copy back to get a defragged copy on your Mac.
Drive Genius and others are pro software to defrag
kl2u said
on 9/9/2009 Seem Mac and PC are not the same way to defrag though the word is the same. " holyhammer said "Macs don't come with defragmenting software."" Funny yeah Mac should think to install defrag tools inside their system.
Thanks.
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My Advance Defrag Tools
http://www.squidoo.com/advanceddefrag
holyhammer said
on 7/23/2009 Good one. I made the switch from PC to Mac, and just realized that the Macs don't come with defragmenting software. Looks like I gotta go shopping.
lalratty said
on 5/7/2009 Why didn't I go Mac earlier? if you use Win-Slow, you need something like Diskeeper, just to keep performance reasonable, but Mac does it for you (mainly)!
JoeyC said
on 7/15/2008 This is actually quite helpful...