OS X Mountain Lion: Time Machine options preferences

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Time Machine options preferences

Use Time Machine options preferences to specify any items you want to exclude from backups, and other options.

Option Description

Add (+)

To exclude items from backups, click Add (+), select the items, and then click Exclude.

Remove (-)

To remove an item from the list, select it, and then click Remove (-). The item will be included in the next Time Machine backup.

Back up while on battery power (portable computers only)

To have Time Machine create backups every hour even if your computer is on battery power, select this checkbox. Deselect it if you wish to conserve your battery.

Notify after old backups are deleted

If your backup disk becomes full, Time Machine creates space for new backups by deleting old ones. To see a message when Time Machine deletes old backups, select this checkbox.

Last Modified: Sep 4, 2015
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