I am unable to activate the Windows I upgraded yesterday from Windows 8.1 on the existing key. When I type SLUI 4 I dont get the screen to activate by phone. I just get the option to enter a new product key. Please assist so that I can activate via phone support.
I upgraded from windows 7 to windows 10 after formatting the computer I installed windows 7 again but when I type the activation key it is showing error code 0x80072f8f . The activation key which I have is genuine
