I just confused at first, why they can sell at so chaeap price, but with our talk on the LiveChat with Linda, everything is perfect, i think i can trust them, so i try it, and buy a windows 10 pro key, and Linda tell me check my paypal email in 5 minutes, and told me, i need to reinstall my windows, if i have win 10 before, but that's ok for me, i buy it for my new pc, so i just check it from my email, and i got it, cant to wait to active it, then it's works, Ty for your help, Linda, and the Team Nokeys.com, i will tell my friends, they need xbox & steam games too, i will come back soon ;)