"You might think that MacOS is unbreakable, but in that assumption, you would be wrong. Things happen, either by way of an upgrade gone awry or a misconfigured option in Settings. Also: Should you upgrade to M5 MacBook Pro from an M1? How the numbers add up Either way, when things go south, you'll be thankful that you set up automatic snapshots."
"Snapshots are a saved point in time when your computer is working properly and can be used to restore your system. With a snapshot, you can roll back the clock on your computer so it undoes whatever bad thing has been done. Keep in mind that snapshots aren't data backups. Because of this, you should not only set up automated snapshots but also configure scheduled data backups. Having both available will ensure you don't miss a beat should your OS go full wacky on you."
Automatic snapshots are point-in-time copies of the Mac system that allow restoring the OS to a previously working state. Snapshots undo system changes such as failed upgrades or misconfigured settings but do not replace data backups. Time Machine provides built-in automatic snapshot capabilities on MacOS. Snapshots should be stored on an external SSD to remain accessible. For recovery, boot into Recovery Mode: on Intel Macs hold Command + R at startup; on Apple Silicon hold the power button and choose Options > Continue. In Recovery Mode choose Time Machine System Restore and select the external drive housing the backups. Also configure scheduled data backups in addition to snapshots.
Read at ZDNET
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