Options preferences
In options preferences, you can specify any items you want to exclude from backups and set other options. To open Time Machine options preferences, choose Apple menu > System Preferences, click Time Machine, then click Options.
Open Time Machine preferences for me
Add | To exclude items from backups, click the Add button , select the items, then click Exclude. |
Remove | To remove an item from the list, select it and click the Remove button . The item will be included in the next Time Machine backup. |
Back up while on battery power (portable computers only) | Create backups every hour even if your Mac is on battery power. |
Notify after old backups are deleted | Be notified if your backup disk is full and Time Machine deletes old backups to create space for new ones. |