First, open your Macintosh HD (or what name of your main Hard Drive). Then, click on your application folder. Next, Utilities folder. Once you are inside Utilities folder, look for BootCamp Assistant. Right click and click “Show Package Content”. After that, click on Content Folder and find info.plist. Open it with your Text Editor. Note : Make a back up copy in case you mess up. To edit this file, you need to drag and drop it on your desktop but before you release your mouse press and hold option key on your keyboard to make the file copy (not a shortcut). Then, Look for this string PreUSBBootSupportedModels change to this USBBootSupportedModels. Save the file and drag and drop to directory where you got the original copy and authenticate it. Next, we need to open Terminal and run the following command without Quotation mark “sudo codesign -fs – /Applications/Utilities/Boot\ Camp\ Assistant.app” hit enter. Window will pop up saying that we need to install a software. Go ahead and install it. Once its done, re type again the code and terminal will replace existing signature. 

Create windows usb installer! 

We need Windows.iso files and Flash Drive 8 gb or higher (Bootcamp Guide USB).

Open your Launchpad Icon, then look for “Other”. Inside that, you will see Bootcamp Assistant. Click on it and window will pop up. Three Icons are check by default. Hit continue. Next, Choose .iso file for your image. Continue, This will take awhile because Drivers for windows will be download. Next, Partitioning your Hard Drive. Each operating system requires its own partition on the disk. Drag the divider to set the size of the partition, or click the divide equally button. Default size for windows is 20 gb, but thats not enough for updates and some apps that you want to install. Tip is go for minimum of 60 gb to 120 gb. Once its done, your mac will restart and windows will boot up.

Windows Set Up

First, Language to Install. Second, Install Button. Third, Option which operating system do you want to install. Fourth, License Terms. Fifth, Which type of installation do you want? On this part, you need to highlight Custom. Last, Where do you want to install Windows? In my option, i have four Partition (1,2,3 and Bootcamp) Of course we will install that windows under the name of Bootcamp. But it will show you a warning saying “Windows Can’t be installed on Driver 0 Partition 4. (Show Details)”. To make this Partition installable by windows, We need to format it. Make sure you highlight the partition 4 (In my case) before hitting “Format”, Because if you “Format the wrong Partition. Your Mac OS will not boot up anymore!!” Once its done, Your Mac will reboot. And follow instructions for Setting up your Windows.

Once you are inside the Operating System, open up your Thumb Drive and look for “Setup”. double click on it and run. After the installation, your Windows will prompted to reboot. Once your System is rebooted, you have now a working Windows under Mac!!