Download official Windows 8.1 DVD ISO
Windows 8.1 can be downloaded officially from the Microsoft website. Most of them will have the product key and will try to install the operating system but for installing the operating system with the genuine product key you need to have the Genuine Windows 8.1 DVD / ISO file. So if you want to do this you first need to download a copy of Win 8.1 form the Internet.
Microsoft has provided the Official copy of Win 8.1 for download form the Microsoft website. You can do this simply downloading the Win 8.1 setup utility from the Microsoft. After downloading the setup utility run the Windows 8.1-Setup.exe file, which you have downloaded. After running the setup file it will ask for the Product Key, after entering the product key it will start the downloading process and it will install the Win 8.1 Operating System.
Download Windows 8.1 Setup Utility
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