To do this, head to the Startup Disk preference setting in Settings.Įvery time the Mac starts, you can also toggle between OS X and Windows by holding down the Option (Alt) key immediately upon startup.
Plug in your USB and open the disk utility tool. As this is only compatible with older versions of Mac OS, it is recommended that you use an alternative method. Once you have Windows installed, you can set the default OS that will start each time you boot your Mac. If you are running an older version of Mac, you can use the built-in Disk Utility app to create a Windows 10 bootable USB drive. Set the Default Startup OS or Toggle Between OS X and Windows The Mac will need to restart to complete the process and will automatically boot into Windows 10 when it's done. Follow the prompts to finish installing Windows.