How to Fix a Mac That Suddenly Says Its Disk Is Full (Without Deleting Your Photos)
Instead of randomly deleting files, start by clicking the Apple menu, choosing About This Mac, then Storage, and then Manage. Use the Recommendations panel to first empty Trash automatically and remove large, already watched TV shows and movies, then switch to the Documents section and sort by Large Files; only delete items you recognize like old installers, zipped folders, or duplicate downloads. As a pro move, open your Downloads folder in Finder, press Command + J, sort by Date Added, and quickly delete anything older than three months that you clearly no longer need.
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