As you might already know you can update your windows 8 to windows 8.1 without the need of a new product key but you can’t install a clean windows 8.1 using windows 8 product key.
Well this is not entirely true and I will teach you how to do that.
The first thing you need to do is Create a Windows 8.1 Bootable USB device.
Next you will need to locate the folder sources inside your USB device with windows 8.1 installation. :\sources
Then create a new text document with the name ei.cfg
Enter the following content in ei.cfg:
Now boot your computer and start the windows 8.1 installation.
During the installation you will need to insert a product key. Use the your windows 8 product key.
Wait the installation to finish and you will have a clean windows 8.1 installation with a windows 8 product key.
In these days it’s very common that computers/laptops don’t have a optical drive. Because of this it’s no surprise that when you need to install Windows 8.1 you will need a USB device, such as a flash drive.
This was my case, I recently needed to installed Windows 8.1 and I didn’t have a optical drive. So I needed to find a way. In the next steps I will teach you how to do that.
The first thing you need is a USB device, such as a flash drive.
The last thing you need is how to create a windows 8.1 bootable USB device.
The last part it’s easy thanks to the Windows Installation Media Creation Tool. This is the only tool you will need.
When you run the Windows Installation Media Creation Tool for the first time you will be presented with the following screen:
In this screen you need to choose the language, the windows 8.1 edition and the architecture. Then click in the Next button.
In the next screen you need to choose that you want to save the installation file to the USB flash drive. Then click in the Next button.
If you want you can save it to an ISO and then burn the ISO to a optical drive such as a DVD.
In the next screen you choose the USB flash drive. Then click in the Next button.
In the last screen you need to wait the download and the creation of windows 8.1 bootable USB device.
After this last step you will be ready to install windows 8.1.