When Mac says “Your startup disk is almost full.” Don’t panic. This problem is caused by file system errors or if there are too many junk files on the startup disk. To resolve this issue, first you need to find out why your startup disk is full on Mac OS X. Here are the steps to follow:
Next what to do when Mac disk is full?
There are multiple ways to get more space on your Mac and avoid startup disk is almost full warning on your Mac OS X.
Important: It is recommended that you backup your HDD with Time Machine before you continue with any of the following steps in order to avoid data loss.
Method 1: Empty the Trash to permanently delete the file
In Mac, almost every deleted document or file heads to the Trash. Just moving file to the Trash doesn’t actually remove it, you need to empty the Trash. Follow these steps to permanently delete the files:
Method 2: Use Finder to track down large files
Finder search is easy to use and quite helpful for fixing the startup disk almost full warning, here’s what you need to do:
Still out of disk space? Here are some other tips you can try for freeing up storage space on Mac OS X:
After following all these steps, restart the Mac and you will be able to get back to work without any alerts popping up. Sometimes, there are chances that you forget to take backup and lose important files. In such situations, don’t worry because using Mac disk recovery utility from Remo, you can easily recover all lost data on all versions of Mac OS X including macOS Sierra.