If your Mac notifies you that the startup disk is full, it indicates that there isn’t enough storage available for you to continue using it for your regular tasks. There will be limitations on certain of your Mac’s operations, and it might crash or operate gradually slower. Alternatively, your Mac can eventually crash due to the starting disk full error. You have to make additional space quickly.
It is worth mentioning that you may have ignored the “purgeable” space on Mac. In Mac Storage Management, Disk Utility, or Get Info, the hard drive’s claimed “Available” space is not entirely free. Storage that “could become” free (sometimes referred to as purgeable storage) when you truly require it is included in Apple’s notion of “available” space in macOS. Of course, Apple gets to decide if you really need it or not. Thus, the purgeable storage should not be included in your actual free space.
Your Mac may indicate that there is insufficient disk space, but you believe otherwise. Furthermore, a few individuals state that their Mac’s available storage space did not rise even after they deleted gigabytes of files. System problems or Spotlight indexing could be the source of this.
You may want to free up more space on your Macintosh HD to fix the startup disk full error. To clear system storage on your Mac, you need to remove the accumulated junk files on your Mac.
Among loads of junk clean methods, using iBoysoft DiskGeeker for Mac is the quickest and simplest way to clear system storage on your Mac. You can free download this Mac optimizer to help you analyze disk space and quickly remove useless files from your Mac!
The Clean Junk feature of iBoysoft DiskGeeker is designed to scan the system drive usually labeled as Macintosh HD, Macintosh HD - Data, macOS, or macOS - Data for redundant data. It can find information and files no longer needed in the system cache, user logs, application cache, downloads, etc.
Files and folders will be listed with file names, modified dates, and sizes for users to select which files should be cleaned to free up the space of the system drive, improve Mac performance, and reduce the system crash risk.
Step 1: Select a volume from the startup disk usually labeled as macOS - Data, macOS, or Macintosh HD, or Macintosh HD - Data.
Step 2: Click “Clean Junk” from the toolbar.
Step 3: Select a folder from the left panel and select the files/folders you want to delete.
Step 4: Click “Clean” and then click “Ok”. You will fail to clean certain files if you don’t have permission to do so.