
Format the Windows (BOOTCAMP) partition When Boot Camp Assistant finishes, your Mac restarts to the Windows installer. Set a partition size that meets your needs, because you can't change its size later.ģ. When Boot Camp Assistant asks you to set the size of the Windows partition, remember the minimum storage-space requirements in the previous section. Boot Camp Assistant will use it to create a bootable USB drive for Windows installation.

If you're asked to insert a USB drive, plug your USB flash drive into your Mac. Use Boot Camp Assistant to create a Windows partition Open Boot Camp Assistant, which is in the Utilities folder of your Applications folder. If you changed it to No Security, change it back to Full Security before installing Windows. After installing Windows, you can use any Secure Boot setting without affecting your ability to start up from Windows.Ģ. The default Secure Boot setting is Full Security.

Check your Secure Boot setting Learn how to check your Secure Boot setting.

Start by reviewing the "What you need to install Windows 10 on Mac" section, then make sure that these steps were followed: Install Windows 10 on your Mac with Boot Camp Assistant - Apple Support 1.
