Time Machine preferences
Use Time Machine preferences to select a backup disk, set Time Machine to back up automatically, and specify options, such as excluding files from a backup and being notified when old backups are deleted. To open Time Machine preferences, choose Apple menu > System Preferences, then click Time Machine.
Open Time Machine preferences for me
Back Up Automatically | Select to have Time Machine automatically back up your files. |
Select Backup Disk, Select Disk, Add or Remove Backup Disk | If you haven’t set up Time Machine, click Select Backup Disk to set up a backup disk. Repeat the steps for each backup disk you want to set up. If you already set up Time Machine, your backup disks are listed, and information about each backup disk is shown. To select, add, or remove backup disks, click Select Disk or Add or Remove Backup Disk. |
Options | Set options to exclude items from being backed up, back up while on battery power, and be notified after old backups are deleted. |
Show Time Machine in menu bar | Add a Time Machine menu to the menu bar along the top of your screen. |