If you are running macOS Catalina or earlier, choose Mac OS Extended (Journaled) as the format. If you are using an old disk with a Windows file system such as NTFS, exFAT, or FAT32, backup the important data first, then format the external hard drive on Mac with Disk Utility. How to backup Mac with Time Machine?īefore using Time Machine, you should prepare a new or clean external hard drive of 2 to 4 times the size of the data you need to backup. If the drive you use for Time Machine backups is full, Time Machine will delete the oldest backups to make space. When Apple Time Machine is on, it saves hourly backups for the past day, and daily backups for the past month, and weekly backups for the data older than a month. FAQ about how to use Time Machine on MacĪpple Time Machine is a built-in app in macOS to backup everything on your Mac by creating images or snapshots so that you can restore a specific file or the whole system when needed. How to restore files from Time Machine to another Mac?. How to restore files from Time Machine?. 
Here, you will know how to use Time Machine to back up and restore your Mac.
It is reliable and easy to use, a solid choice for the majority of Mac users. Time Machine is Apple's solution for you. The best way to avoid data loss is to keep your Mac backed up so that you have a place to restore your Mac after an accidental deletion or system crash.
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