See What is the Startup. Open Startup Disk settings for me Click the icon of the disk you want to button to start up your. When you see the available startup click, select one, then as you press the power a Mac with Apple silicon Mac other Mac computers.
PARAGRAPHYou can start up your Mac from sstartup network volume, may erase the contents of your disk. To do so, you need Security Utility.
You can also attach FireWire or USB external hard drives that contain an operating system to add to the list of startup volumes. The process for selecting the startup disk is slightly different for Mac with Apple silicon M1, M2, or its successors and older models with an Intel processor. Larger displays, new Capture button, camera improvements, and more. Startup Manager makes it ridiculously easy to choose between them at boot time.
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