so im sitting here trying to activate my windows 8.1 entreprise but i just cant do it, in command prompt ive tried the "slui 3" command but its telling me "this key cant be used to activate this version of windows. please try another key" ive got a key that says "windows 8.1 OEM software" on it. ive also tried using the "slmgr.vbs -ato" command with no luck and its giving me the "0xC004F069" error with the message "On a computer running Microsoft Windows non-core edition. run slui.exe 0x2a 0xC004F069 to display error text." what should i do?? heres the error text

"The software licensing service reported that the product SKU is not found"

AFAIK there is no OEM enterprise.  Where did you get the key and where did you get enterprise.  If you are a Volume licensee contact the Volume Licensee center https://www.microsoft.com/Licensing/servicecenter/default.aspx

on the packet it says windows 8.1 for OEM software and my code i got my entreprise from the offical microsoft website and the windows copy online from a shop called www.netonnet.no

Window 8 version with the key version is different. 

1. If you have legal Enterprise version of operating system (installation medium, key/COE, invoice), then you are part of multilicense program. Every multilicense has its  administrator and support. This is your first contact to solve your problem. Most simple solution is new key.

2. You cannot use key from different multilicense program, namely OEM in your case when Enterprise is installed.

Regards

Milos

how do i use my oem key then??

You cannot because it is not legal.  Return it to the place of purchase.

its not a legal copy of windows??

It is a legal copy of windows.  It is probably not a legitimate key (serial)

what am i supposed to say to the retailer then??

Um, start with the key is not valid.

my windows 8.1 entreprise

key that says "windows 8.1 OEM

You need to either change enterprise to OEM, or get an enterprise key. 

oh ok