

Keep in mind that you will need to learn your start up disk name if you have another disk on your Mac. Now you need to click on " Storage" and there you will see the available storage from your disk. You will find the version number on macOS, like this: Well, you can do so by clicking the Apple logo and then select the option “ About This Mac”. You now should be asking how to manage storage on Mac.

You need to take action and start removing files from your main disk to fix this.

This error will show up when your disk is more than 85% full. You will get this message as a warning to let you know there is left little free space on your main disk. You can add an external hard drive to keep more app and information, but mostly all the users keep just the startup disk alone. Your machine needs all this information to start up and it is the main disk drive. It contains your operating system and all the apps you have installed on Mac. In Mac, the Startup disk is a hard drive. What is the Meaning of "Your Disk is Almost Full"? 01 What is Startup Disk?

