Using Mac Cleaner regularly can help you monitor your Mac performance, so that the startup disk almost full issue can be prevented well. Then it will uninstall the application and remove the associated files for you. After scanning, click 'View' to preview the scan results and choose the software you want to uninstall. You are also able to uninstall unwanted applications with this Mac Cleaner.Ĭlick Toolkit > Uninstall to scan all the applications installed on your Mac. Follow the steps below to have an overview on the storage of your startup disk.

If you received the error message 'Your startup disk is almost full' on your Mac, you can check the disk storage on your Mac to discover what is taking up the most of space of your startup disk. So if you received the warning message that 'your startup disk is almost full', it's the high time that you should free up the space on your startup disk immediately. Generally speaking, there should be at least 15% free space left on your startup disk to make sure your Mac can run smoothly.

It's full because there is no more space on your disk. The reason why you receive the error message that 'Your startup disk is almost full' is obvious.

No matter you have one or more disks on your Mac, the one with the Mac OS installed is your startup disk. Generally speaking, most users have just one disk but some will have two or more. Why Startup Disk is Full and How to Check Storage on Macįirst of all, what is a startup disk? A startup disk is a volume or partition of a drive that contains a usable operating system, user data and applications, etc. How to Fix Startup Disk Full Issue with Powerful Utility Why Startup Disk is Full and How to Check Storage on Mac

Your startup disk is full