“Ordered Windows 10 Pro key. Key arrived in email a few minutes later. Was able to successfully upgrade from windows 10 home to windows 10 pro with the help of customer support via email. Had to upgrade windows and reboot. Am very pleased with the price.”
“Like many others, I was little suspicious but then I decided to buy and take the risk. The key activated like a charm, and now I have a genuine Windows 10 Pro. Little tip: before you buy, make sure your Windows 10 version is "Pro". You can't switch from Enterprise to Pro (I tried).”
“Purchased a windows 10 pro retail key. Emailed support regarding digital delivery of my purchase. Quick response from support and were able to help me. I got my purchase through email and it works. Great job!”
“Upgraded from Windows 10 Home to Pro using the key provided. When you change the product key to the new one they provide, Windows might give you an error saying that the change could not be completed with an error. Don't worry, just restart and you are good to go.
Run slmgr /xpr from cmd once done to check the activation status.”