With the available startup disks shown, select one and then click the Up arrow to boot into your computer from the startup disk you just selected.

With your Intel-based Mac turned off, press the power button to start up the computer and then immediately press and hold the Option key to invoke the startup disk manager.

On an Intel-based Mac, follow these steps to choose a startup disk: The next time your computer restarts, it will switch back to using the disk that’s currently selected as your startup disk in System Preferences. The computer will restart using the newly selected startup disk.Īs mentioned, this is a one-time change. With the available startup disks displayed, select one and click Continue below it.

Your Mac will scan all the disks attached to it.

On an Apple silicon Mac mini, wait for the system indicator light to turn amber.

With the machine turned off, press the power button one and then immediately press and hold the same power button until you see Loading startup options.

To change the startup disk on your Apple silicon Mac for the next session only, do the following. You can change your startup disk once by pressing a special keyboard combination at boot time to bring up the startup volume sector, which lets you change your boot volume: Apple silicon Macs

Conversely, changing the startup disk for every startup remembers it across future sessions until you change it again. Change your startup disk for every startupĬhanging the startup disk once is only valid for the next boot session.Selecting a startup disk other than your Mac’s default startup drive can be done in two ways: 2) A note about Startup Security Utility How to change your Mac’s startup disk

Your startup disk is full mac pro