After downloading the ISO file of Windows 8.1 , please have 1 USB with a capacity of about 8GB or more to create. Then you plug the USB into the device and open the Boot Camp application from the Launchpad> Other> Boot Camp Assistant, then follow the instructions to use.
At the Select Tasks screen, check the option to 'Install Windows 7 or later version' and click Continue.
At the next setting interface, set the selected Windows 8.1 ISO file path and the USB device used to create the installer. After setting, click Continue to start importing the ISO file to USB, this process may take up to 5 minutes or longer depending on the system configuration.
After completing the initialization of Windows 8.1 installation USB for Mac, click Quit to exit Boot Camp Assistant and move on to the next installation step.
Now go to Launchpad and select Disk Utility.
The Disk Utility interface will display the list of drives in the Mac, select the drive with much free space that you will proceed to cut and create a new drive to store Windows 8.1.
After selecting, click the Partition tab.
Next, click on the '+' icon to create a new drive partition. Then proceed to set the customizations for partitions such as naming partitions, formats, storage space .
Once it's done, click Apply to proceed .
Now connect USB to Mac and restart Mac. During boot, hold down Alt (Option) on the keyboard. After the Mac Boot screen is displayed, select the Windows icon to proceed to the Windows 8.1 installation step from USB.
In the step of selecting the Windows 8.1 installation partition, remember to carefully select the partition with the name you have previously set up to avoid problems. Next, choose the Format partition command again before installing Windows 8.1.
One note is that during the installation of Windows 8.1 on the Mac, the computer can restart and when it is in the process of starting up, hold down the Alt (Option) key on the keyboard and select Windows to continue the process. Setting.
After installing Windows 8.1 on Mac, Boot Camp will automatically be installed and launched, please click Next and agree to use the agreement of Boot Camp. Next click Next again to begin the process of installing supported drivers for Windows 8.1 on Mac.
That's it, now try the Windows 8.1 experience on Mac.