This article was co-authored by How.com.vn staff writer, Megaera Lorenz, PhD. Megaera Lorenz is an Egyptologist and Writer with over 20 years of experience in public education. In 2017, she graduated with her PhD in Egyptology from The University of Chicago, where she served for several years as a content advisor and program facilitator for the Oriental Institute Museum’s Public Education office. She has also developed and taught Egyptology courses at The University of Chicago and Loyola University Chicago.
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If you’ve ever looked at the hard disk space on your Mac, you might have noticed a big gray block called “System,” “System Data,” or something similar. If you’re interested in freeing up space on your Mac, you might be wondering if there’s an easy way to delete some of that data. While there’s no simple method for clearing all your system data at once, we’ve put together a guide to safely deleting some of the major space eaters from the System category.
Things You Should Know
- System data includes things like temporary files and caches, backup files, and old app installation files.
- You can safely delete some files from this category, such as Time Machine snapshots, log files, and app caches.
- Don’t delete system caches or hidden system files unless you know exactly what they do and have a good reason to delete them.
Steps
Deleting Time Machine Snapshots
- Open the Apple menu. Time Machine snapshots are backups that let you restore your files in case something goes wrong with your system. Some of these snapshots may be stored locally on your Mac, which can take up a lot of space. Fortunately, it’s easy to delete them. To get started, click the Apple menu in the top left corner of your screen.[1]
- Select System Settings. Or, if you’re using macOS Monterey or earlier, click System Preferences.
- Click General. You’ll find it in the sidebar on the left side of the System Settings window.
- If you’re using macOS Monterey or earlier, skip this step.
- Click Time Machine. This will open the Time Machine settings window. #*If you never activated Time Machine, you’ll see a button saying Add Backup Disk….
- Click Options. If you’re using macOS Monterey or earlier, skip this and just toggle off the switch next to Back Up Automatically instead.
- Select Manually from the Back up frequency menu. Click Done to save your selection.
- After you turn off automatic backup, your local Time Machine snapshots will be deleted automatically. Wait a few minutes for the process to finish, then turn automatic backup back on if you want Time Machine to keep backing up your files.
Removing Old iOS Backup Files
- Open a Finder window. If you’ve ever backed up an iPhone or iPad to your Mac, the backup files can take up a lot of space. If you don’t need them anymore, free up room by deleting them. There are a few different ways to do this, but the easiest is to delete them directly from the backup folder. Start by opening the Finder from your Dock.[2]
- Click Go and select Go to Folder. You’ll find the Go menu in the menu bar at the top of the screen. Choose Go to Folder to open a search box.
- Paste ~/Library/Application Support/MobileSync/Backup/ into the box. Click on the results and hit Return to go to the backup folder.
- Select and delete your old backups. If you have any backups in the folder that you don’t need anymore, select them and drag them to the Trash. You can also select them and then press command+delete.
- Don’t forget to empty the trash when you’re done!
- You can also delete old iOS backups via the Finder (or iTunes, on older Macs) if your iOS device is plugged into your computer.
- In Finder, click your device in the left sidebar, then open the General tab and select Manage Backups. Ctrl-click or right-click any backups you want to delete and select Delete Backup, then click OK when you’re done.
- In iTunes, click the Devices tab, then select any backups you don’t want from the Device backups list and click Delete Backup.
Expert Q&A
Tips
- For more ideas, check out our user-friendly guide to optimizing your Mac!Thanks
References
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