Is Kinguin reliable?
If it says code 8 try this:
Press and hold the button “Windows” and the button “R” to open the “Run”
window.
Write in the “Run” window the following command: “SLUI 4”.
Press the “Enter” button on the keyboard.
You will now have a “Phone Activation” window in front of you.
In the window you will need to choose the country from which you registered.
Call the activation number after you chose the country.
After you dialed you should be asked to write you’re “Installation ID”.
Note: type the installation ID in your phone.
After you typed the installation ID it will ask you how many copies of
Windows have been installed with this license and you should choose “1”. If
you choose any other option it will not work.
Note: The option “1” you chose means that you only used it once.
After you did the steps above you should get a confirmation ID and then you
are set to go with a workable product key.