Last updated on by * * _Francis_
First of all, remove any unnecessary or duplicative third-party applications, you can also remove the applications that come standard with your Mac if you do not use them; iMovie, iPhoto, GarageBand, they take a lot of space on your drive, and there's no point keeping them if you don't need them. If you are not completely sure that you will never need certain applications again, make sure you have the means to reinstall them in the future, just in case….
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"FAQ: How to clean your Mac"
There are several programs that allow you to "visualize" the space your files take up on your hard drive, using a 3D preview or with color blocks for example. Thanks to this, you will be able to see if these files are useful to you or not, if you can delete them, compress them (archiving), or save them externally:
It takes a bit of organization, but when you have a lot of files, consider archiving the ones you no longer use. For that it's very simple, you just have to right click on your folder or your file to compress, and you select "Create an archive of (your file)" or "Compress (your file)". A ZIP file will then be created, you will only have to store it on your computer, or transfer it to an external drive or to your Cloud for example!
For older versions of Mac OSX, the system automatically runs maintenance scripts at night when the computers are turned off. It is therefore not cleaned regularly. On the other hand, you have applications that can help you do this maintenance more regularly. OnyX is one of them. However, be careful to use the version of Onyx that corresponds to your version of Mac OS installed.
See also these pages, depending on the Mac OS or OS X version concerned:
You can also do this manually in Finder / Applications / Utilities / Terminal. Once in the Terminal, type:
sudo periodic daily weekly monthly
- Go to: Finder / Library / Application Support / MobileSync / Backup Folder.
- Then delete all your old backups (be careful to keep the most recent ones) by placing them in the recycle bin (remember to empty the recycle bin for the deletion to be effective).
- Often forgotten, the “Downloads”, “Videos” or “Music” folders sometimes host files that you no longer need, and which can take up space (films, photos, music). Remember to visit it regularly.
- Don't forget to pass update files from your iPhone: Finder / Library / iTunes / iPhone / Software Updates, and delete old unnecessary backups.
- Disk images are also often forgotten, they are the DMGs (which are displayed when you install an application): simply drag them to the trash.