activate Windows 8.1 pro with media center build 9600

I have tried various product keys to activate my Windows 8.1 pro using command prompt but I kept getting an error saying 0xC004E016 on a computer running Microsoft Windows non-core edition, run 'slui.exe 0x2a 0xC004E016' to display the error text. I have tried using slui 3 and kept getting the same problems over and over again. If I could get any help it would be my pleasure.

a) Press Windows key + R, type “slui.exe 3” and press enter

b) Enter the new product key and check if it works.

c) If you still get the same error, I would suggest you to again press Windows key +R

d) Type “slui.exe 4” and press enter and then follow the prompts to activate the copy by phone.

If you have a genuine product key, the folks at microsoft will give you help activating using a toll-free number. If your product key isn't genuine - you're out of luck here - we arent in the business of helping people pirate software.