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If deleting videos did not free much space on your Mac, first empty Trash, then check which storage category is still using space. If the videos may be needed later, make sure you have another copy before removing them—especially if they were in iCloud Photos, where deleting on one device can delete them on others.

1. Empty Trash to remove the deleted files

Files moved to Trash still occupy storage until Trash is emptied. Open Trash from the Dock, check that it contains only items you are ready to remove, then choose the option to empty it. Apple explains: “When you move a file to the Trash, its storage space doesn’t become available until you empty the Trash.” Apple Support: Free up storage space on Mac

For files stored in iCloud Drive, Recently Deleted is a separate recovery area; its behavior is not the same as local Mac Trash. Check the relevant iCloud location before assuming a file is permanently gone. Apple Support: Manage your iCloud storage on your Apple device

2. Find out what is still using storage

Open the storage overview for your macOS version:

  • macOS Ventura 13 or later: Apple menu > System Settings > General > Storage.
  • Earlier macOS versions: Apple menu > About This Mac > Storage.

Review the categories and open their details where available. The overview can help show whether the remaining space is used by applications, documents, photos, or another category. It updates as you follow Apple’s storage guidance, but Apple does not specify a fixed refresh time. Apple Support: Free up storage space on Mac

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What “System Data” does—and does not—tell you

System Data is a broad, changing category. It can include caches, logs, temporary files, app support files, fonts, plug-ins, and other resources that do not fit another category. A large System Data figure does not identify a particular folder as safe to delete. Avoid removing unknown system files based on that label alone. Apple Support: Find and delete files on your Mac

3. Locate large media and move it if you want to keep it

If you want to retain videos but reduce the space they use on the internal drive, move them to another storage device. Apple also describes moving a Photos library or iMovie library to an external storage device. An external SSD is one option; choose a drive and connection compatible with your Mac and large enough for the media you intend to keep.

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  1. Use the storage overview and Finder to identify the video files or media library taking up space.
  2. Copy or move the files or library to the external destination.
  3. Open the files or library from that destination and confirm they work before removing any duplicate from the Mac’s internal drive.

Apple’s storage guidance also suggests targeted checks of Downloads, media you can stream or download again, old iPhone or iPad backups, unused applications, mail junk or deleted items, and old or unused user accounts. Review these only when the storage overview indicates they are relevant; deleting unrelated files will not necessarily address the category using your space. Apple Support: Free up storage space on Mac

4. Use storage recommendations with their trade-offs in mind

Depending on your Mac and macOS version, Storage settings may offer options such as Store in iCloud, Optimize Storage, or automatic Trash emptying. These can make some files available on demand, keep optimized versions locally, remove watched Apple TV content, retain recent email attachments, or remove Trash items older than 30 days. Check the option’s description before enabling it so you know what will be stored locally and what may be removed automatically. Apple Support: Optimise storage space on your Mac

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Using iCloud can shift some storage pressure from the Mac’s internal drive, but it uses space in your iCloud plan; it does not make storage needs disappear. macOS also removes certain caches and logs when space is needed. Safe Mode can temporarily clear some caches, which are later recreated. Apple presents that as a possible short-term measure, such as when you need room to complete an update, not as a guaranteed way to recover a large amount of video storage. Apple Support: Optimise storage space on your Mac

5. Check iCloud Photos before deleting anything else

If iCloud Photos is enabled, deleting a photo or video on one device also deletes it on other devices signed in to the same Apple Account. Before deleting synced media you might want later, make an independent copy and verify that it is accessible. Apple Support: Manage your iCloud storage on your Apple device

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6. Leave Time Machine snapshots to macOS

Local Time Machine snapshots count as available storage and are automatically removed as they age or when the Mac needs room. They are not the first place to look when deleted videos have not freed space. Apple Support: About Time Machine local snapshots

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