How To Clean Backup File On A Mac
Apple's built-in backup program for the Mac on macOS Large Sur, Fourth dimension Machine, makes information technology incredibly like shooting fish in a barrel to back up all of your important data so you lot tin can restore your computer if something should happen. You can even recover deleted files if you accidentally lose them.
On Apple tree laptops, like the MacBook, MacBook Air, and MacBook Pro, Time Machine includes the added feature of creating local snapshots and then that, if you disconnect your MacBook from its external hard drive, you'll still have backups stored on your internal hard drive so yous can recover data if you demand to.
Local snapshots are invaluable for certain situations when you're out and about and demand to recover data but don't have your backup hard bulldoze. They also, somewhen, start taking up noticeable space on your hard drive. To complimentary up space on Mac, keep reading.
Why do I have 100 GB of backups on my hard drive?
You lot need an external hard drive to prepare and use Time Motorcar because that'south where your backups are stored. So why practice you have a big number of backups taking up infinite on your MacBook's internal difficult drive? Because of local snapshots.
As soon every bit yous set Time Machine on your Mac laptop, local snapshots are created automatically. Fourth dimension Car makes one daily snapshot every 24 hours when you start up your MacBook. It also stores weekly snapshots. It keeps those weekly snapshots on your internal hard drive until you start to get low on storage. So, if you've been backing upwardly your Mac for years with Time Machine, you lot could potentially accept 100 GB of backups stored in your internal hard bulldoze, as long as you have space for them.
How do I get rid of all these backups?
First, let me preface this by saying that you shouldn't worry about those backups and all the infinite they are taking upwardly. If everything is working properly, Time Machine will automatically delete the oldest snapshot backups every bit soon as your internal hard drive has less than 20% of storage space left. If you so, say, download some big programme and your internal difficult drive plummets to beneath 10% (or less than 5GB of internal storage), Time Automobile will delete all local snapshots except the well-nigh recent. The program volition so keep to replace the sometime snapshot with a new one until you free upward space on your Mac'south internal storage, at which point it will become dorsum to saving weekly snapshots as long every bit infinite permits.
That beingness said, everything doesn't always work properly, and y'all may find yourself out of storage space on your internal hard bulldoze, and those snapshot backups won't go away. If you lot actually need to delete those snapshots (which I don't recommend unless you lot desperately demand that space), at that place is a manner to purge local snapshots from your internal hard drive. Y'all can employ a Terminal command that will disable Time Machine'southward local snapshot feature, which will delete all of the local snapshots on your internal hard drive. It will as well cease Time Car from creating new snapshots.
To disable local snapshots in Time Machine and remove them from your internal storage:
- Open Fourth dimension Machine Preferences from the Time Machine bill of fare in the menu bar on your Mac.
- Uncheck Back up Automatically.
- Await a few minutes for the local snapshots to delete.
-
Check Back up Automatically again.
Source: iMore
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Free up space on Mac: Any questions?
Earlier y'all decide to purge your local snapshots, exist certain you lot really need to practice this. Time Machine should work automatically to remove older backups as y'all demand the storage space on your internal hard drive. If you delete old backups, you can never think data from them if something were to become wrong while yous aren't connected to your backup hard drive. If you lot have whatever questions near local snapshots, drop them in the comments, and I'll help you out.
Updated March 2022: Updated for latest macOS version.
Source: https://www.imore.com/how-free-space-your-mac-deleting-old-backups
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