Whether you are looking to use Boot Camp with your best Mac or just need to do some serious troubleshooting, knowing how to select a startup disk on your Mac is a big help. Here's how to select a startup disk in macOS Monterey.
What is a startup disk?
A startup disk is a partition of your drive that contains an operating system. If you want, you can choose what startup disk to use when you boot up your Mac. This is a practice used by many people who decide to use Boot Camp to access Windows and macOS on their Macs.
How to select a startup disk on Mac
The Startup Manager lets you choose a different startup disk during boot. So if you have your Mac partitioned to run Windows or a macOS beta, for example, you can select that startup disk instead of the default disk.
- Start or restart your Mac and immediately press and hold the option key on your keyboard.
- Release the option key when you see the Startup Manager window.
- Select a startup disk.
- Click the arrow or press Return on your keyboard.
Important note: When you select a startup disk, ensure you aren't selecting an install image. If you do, that will trigger a reinstall of macOS and may erase your data.
A standard network volume icon appears as a globe with a folder. A network install icon appears as a globe with a downward-pointing green arrow. Be extra careful when selecting the right icon.
Other troubleshooting modes on startup
While knowing how to select a start disk can be important for troubleshooting reasons, there are a ton of different shortcuts you can take upon startup that may sometimes also be over services. So don't forget to familiarize yourself with those as well.