Completion of the process will demand you to choose the Windows OS from Control Center.
Click on the Choose Manually option to select your Windows OS image from your plugged-in thumb drive.Visit the Create a New section and click on Install Windows or another OS from a DVD or image file.If you don’t have a copy, then purchase it from the Microsoft store. Use a copy of the Windows 10 OS ( Download it from here) and burn it on a USB thumb drive.