If you have multiple startup partitions on your Mac, such as For example, if you have a new operating system, you need to know how to manage your Mac’s startup disk.

The startup disk is the disk your Mac starts from when you restart your computer. You can change this volume permanently or temporarily on a case-by-case basis.

In this tutorial, I’m going to show you how to set up a startup disk and change the startup disk when you restart your Mac on the fly.

Here’s how to make your Mac’s startup disk permanent

Table and article summary

Step 1: Open the system settings.

Step 2: Click Startup Disk.

Step 3: Click the hard drive that you want to use as your Mac’s permanent startup disk.

Whenever you restart your computer, your Mac will always start on the selected hard drive. You can change this setting at any time.

Here’s how to change your Mac’s startup disk on the fly

Step 1: Restart your Mac while holding down the Option (⌥) key on your keyboard to load Startup Manager.

Step 2: In the Startup Manager, click the hard drive you want to start from.

That’s all you gotta do I recommend using the Startup Disk option in System Preferences if you plan to use a particular disk for an extended period of time. Otherwise, it might be better to use Startup Manager to temporarily switch hard drives when you restart.

Which option do you use when managing your startup disks?

See also:

How to choose your startup disk on Mac

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