How to Back Up Your Mac with Time Machine

Set up Time Machine to automatically back up everything on your Mac to an external drive.

In this guide (6 steps):

1.What is Time Machine?
2.Get an external drive
3.Set up Time Machine
4.First backup
5.Restore files
6.Best practices

What is Time Machine?

~15s

Time Machine is Apple's built-in backup tool. It automatically saves copies of everything on your Mac — files, apps, settings, and even your entire system. If something goes wrong, you can go back in time.

Get an external drive

~15s

Buy an external USB or Thunderbolt hard drive. Recommended size: at least twice your Mac's storage (if your Mac has 256 GB, get at least 512 GB). A 1 TB drive costs $40-60.

Set up Time Machine

~15s

Connect the external drive. Your Mac may ask if you want to use it for Time Machine — click Yes. Or: System Settings > General > Time Machine > Add Backup Disk. Select your drive.

First backup

~15s

Time Machine starts its first backup automatically. This initial backup takes a while (could be hours) because it copies everything. Subsequent backups are much faster — only new/changed files.

Restore files

~15s

Click the Time Machine icon in the menu bar > Browse Time Machine Backups. Navigate through time to find the file you need. Select it and click Restore. It reappears in its original location.

Best practices

~15s

Leave the drive connected when at home so backups happen automatically. Time Machine backs up every hour, keeping hourly backups for 24 hours, daily backups for a month, and weekly backups until the drive is full.

You Did It!

You've completed: How to Back Up Your Mac with Time Machine

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