OS X will begin partitioning and rearranging your hard-drive data, a process that may take some time. IDG Adjust the slider to give your Windows partition more or less free space. Here you can decide how much hard-drive space to allocate to your Windows partition. Dual-Boot Windows and macOS Sierra | tonymacxcom This action segments your drive to devote free space only for Windows, without interfering with or erasing your existing macOS installation. IDG After the download finishes, the assistant will prompt you to create a Windows partition on your hard drive. Then press Enter to start downloading the software. IDG If asked for your administrative credentials, fill them in. This software will allow you to install the most current drivers for Windows.
Click Applications and then go into Utilities.
