MacBook system storage

Hi,

The About This Mac > Storage report depends on the Spotlight index and may have a glitch, meaning it is too often not correct. Try rebuilding your Spotlight index, then restart: https://support.apple.com/en-us/HT201716

If no luck, try booting into Safe Mode: https://support.apple.com/en-us/HT201262 and check out the Storage report. It won't show categories (everything will show as Other), but should show accurate the amount of free space out of the total capacity.

Also go to Applications > Utilities > System Information > Hardware > Storage to see your total Capacity and space Available.

Also click once on your HD icon on the desktop > go to File menu > select Get Info > note what it says about Capacity and Available. These should be accurate.

If you have at least 5GBs free space available, preferably 10GBs, then read on, otherwise you’re just going to have to delete/transfer as many large files (videos, pictures, audio) as possible to reach 10GBs of free space or more. Once you have enough free space available to allow you to download an app to help you out, follow the next paragraph.

To see exactly where storage is being used, use one or more of the following apps:

https://www.omnigroup.com/more (OmniDiskSweeper)

http://grandperspectiv.sourceforge.net (Grand Perspective)

http://www.derlien.com/downloads/ (Disk Inventory X)