How to Defragment an iMac Computer
Windows-based PC users are usually familiar with the maintenance task of defragmenting their hard drive. Defragmenting, also known as file optimization, locates fragmented files in the computer and puts them back together to improve efficiency and function. Unlike in Windows, Mac OS X does not include a defragmentation option in its disk utility. This is because, for most iMac and other Macintosh computer users, it is unnecessary to defragment the hard drive. The OS X operating system eliminates most of the things that cause file fragmentation. However, users who work with very large files or have full computer disks can employ third-party software to defragment their iMac computer.
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Instructions
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Obtain and install a third-party disk repair program, such as TechTool Pro, that offers a defragmentation option. Launch the program by double-clicking on the icon in your "Applications" folder.
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Open the Tools menu in the upper left-hand corner of the window. Highlight "File Optimization" from the Tool Selection menu.
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Choose the hard drive you want to optimize from the File Optimization Configuration menu. Press "Run File Optimization" to begin defragmenting the hard drive. Enter an administrator name and password in the on-screen prompt and press "OK." A status screen will appear in top of the window. When the optimization is complete, a report of the files that were defragmented will appear in the window.
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