jason muro: Thanks bro ,for the one who can't use the free key or who want to upgrade in the future ,my suggestion is to buy one genuine key in mskeyoffer com , the price is amazingly low , the key works like a charm .
Ayan Sengupta: want to buy original windows product key at a lower price??
mail at email@example.com
I bought one today, and my windows 8.1 is activated permanently, Thought I'd share! enjoy :)