Step 5: Use Boot Camp Assistant

Important:

Back up your files if you haven't yet done so. Partitioning your system's hard drive with Boot Camp Assistant may erase all files. To learn more, see Back up your Mac. For details about backing up your documents and content using cloud services at IU, see Store and share your individual files at IU.

The Boot Camp Assistant will help guide you through the process of adding Windows to your Mac.

For an easy way to begin, click , the Spotlight icon. In the search bar, type boot camp assistant, and press Enter.
The next screen describes what Boot Camp Assistant does, and warns you to back up your disk if you haven't already done so. Click Continue.
Boot Camp Assistant will automatically remove older Time Machine snapshots and cached iCloud to make space for Boot Camp. This process may take a long time to complete. If you wish to skip this process, click Stop.
To select the installation tasks to complete, make sure Create a Windows 10 or later version install disk, Download the latest Windows support software from Apple, and Install Windows 10 or later version are all selected.
Before continuing, make sure a USB drive (at least 16 GB) is connected to the system, and be aware that the entire contents of that flash drive will be erased.
On the next screen, make sure the ISO file you just downloaded from Microsoft and the appropriate flash drive are both selected. Click Continue.
To confirm that the drive will be overwritten, click Continue.
This step will take some time, depending on your computer's hardware capabilities and your internet connection speed. Make sure your computer remains plugged into an AC outlet during this process.
To begin creating a partition on your Mac's hard disk to hold Windows, authenticate with your administrator password.
Use the slider between the Mac and Windows icons to select a size for the Windows partition.
UITS recommends that you use 80 GB for just Windows, and 90 GB for Windows plus Microsoft Office.
Click Install.
This process will take several minutes to complete. Once the partition is created, your Mac will restart and begin installing Windows 10. You may be prompted several times for your administrator password.