If you’re getting Your startup disk is almost full warning on your Mac, you should really consider cleaning up your system disk and free up some more space.

Note: If you are running an older version of OS X, you may have to first click More Info… and then click Storage. You can follow the steps below to see what’s taking up your disk storage:Ģ) Click the Storage tab, and you can see the detailed information of your startup disk: how much space is available in your disk, and the categories that take up the space. Since you know what your startup disk is, it’s obvious that why your startup disk is almost full: lots of applications, photos, videos and documents are stored in your startup disk, and you should free up more storage space in your disk. You can follow the steps below to do:ġ) Click the Apple icon at the upper left corner, and click About This Mac.Ģ) Under the Overview tab, you can see the Startup Disk information. It’s rather easy and direct to check what your startup disk is. That is to say, your startup disk contains the operating system information, applications and user data. What is the startup disk?īy default, your Mac starts up from its built-in hard disk, but a startup disk can be any storage device that contains an operating system compatible with your Mac. If you’ve already known something about this, you can skip to the second part: ways to fix full startup disk. This part is about the information on the full startup disk warning. Clean up your Mac securely and automatically 1. If you’re a fan of Mac Pro/Air, you won’t be unfamiliar with the warning message: Your Startup Disk Is Almost Full.Īnd if you’re getting this full startup disk warning, don’t panic! This is a common error on Mac and you can fix the startup disk full error message easily.Ģ.

Mac your disk is almost full