Mac Startup Disk Full?

Calm down, there is a way to solve this problem
following all the instructions given in this article.

Startup Disk Full top

Your startup disk should have at least 15% of a free space to run properly. So if you have 500 Gb drive, the goal is to free 75 Gb for various system requirements. And it is easier to do than it may seem. System folder is a place where some of the hidden activities of your mac’s usage are stored. Sometimes we just forget to control them.

Your Startup Disk is Almost Full?

Cleanup System Folders

  • First of all, check you Trash

    We frequently delete files, but do we empty Trash? If you do not empty Trash at least once per week, one day it may contain up to several Gb.

  • deleting trash folder on mac screenshot

  • Delete Downloads

    How many times have you downloaded files from the web? All of them stay unorganized in this folder. Several Gigabytes of free space as well.

  • clear downloads folder mac

  • Clear Caches

    It is recommended to delete them once per month. Otherwise rather than speeding your Mac, they slow it down. Up to 2 Gb. Note: some apps even after removal leave cache files.

  • clear cashes on mac

  • Remove Language Resources

    The most misjudged space eater. Language Resources is the data stored by apps for different language localizations. So do you need iTunes translations for Vietnamese? You may have up to Gb of completely wasted space.

  • remove language resources mac

  • All these operations can be easily done by ClearDisk application. Simply press Scan button, then delete all unnecessary files.

  • Buy on Mac App Store
  • Startup disk is full and you need even more space?

    In this case we suggest moving user files to the external hard drive.


  • Disk-Expert-Startup-Disk-Full

    How to do it in several minutes instead of hours? Use Disk Expert – this tool is capable of scanning custom folders, identifying biggest files and collecting files from various folders into unified “drop lists” for further movement to external hard drive.


  • Buy on Mac App Store

Moving files to external drives

  • Desktop

    Sometimes desktop contains hundreds of unorganized files, some of them may be quite huge!

  • clear desktop on mac

  • Check Documents, video & images containing folders

    Even if you want to keep them as memory, there is no point to store them on your startup disk (that is performed by default).

  • clear documents folder mac

  • Clear iTunes folders

    Especially be careful with folders having audio & video podcasts, mobile applications and music. Do you now that iTunes automatically downloads updates and new series? Imagine how much space it may take.

  • clear itunes folder on mac