
Choose the one you like the most and follow the instructions provided by the developer. But, if your Mac is really old and running slow, you can still defrag your hard drive by installing third-party software. MacOS doesn’t come with a utility for defragmentation and there’s no Terminal command for doing this either. Click Repair Disk Permissions to repair any inconsistent permissions.Click Verify Disk Permissions to check permissions.Open Disk Utility (Applications > Utilities).Here are the steps for optimizing your Mac: But defragging a Mac is rarely needed, because Macs can defrag themselves.

Disk defragmentation reorganizes your hard drive’s files to make them easier for your computer to access. A Mac defrag moves related bits of data on your hard drive together, so files and programs can load faster.
