Windows 10: Purchased windows 10 pro key from kinguin, how to tell if genuine?

I purchased this key for my friend to use with his PC we just built. Used with the windows installation software from a USB and we typed in the key, and it was accepted. Then the computer rebooted and because we hadn't removed the USB drive, it loaded the installation program again. We removed the drive and Windows 10 loaded like normal for the first setup, but he keeps getting the message that his copy of windows isn't genuine. I don't know if the key we purchased isn't a good one, or if we messed up when we rebooted after the install was supposedly complete. Maybe after we used the key it was no longer valid and we lost it after the reboot? Any help would be appreciated.

:)

 

Windows 7 not genuine problem

It seems like that's an OEM windows copy, it will do that the every time you reinstall the OS. If you have the key, next time you see the "not genuine windows copy" click it and choose to activate by phone, everything else is pretty straight forward as it explains step-by-step. If it doesn't work, then its highly likely that you got a Pirate copy.

 

windows 10 key

Thanks but I don't want to do any decrypting. I want to download a Win 10 ISO from Microsoft and install it using my Win 8 key. No other steps required. Is that possible?

 

Is it possible to uprade Home 7 or 8.1 Core to 10 Pro?

If you suggest to simply click on "Change Product Key" and set a Pro key, it won't work! I've already tried that. You must click on "Go to store" and purchase the Pro key. This is to make sure that you have actually paid for the key and it is genuine. The upgrade process could be about 10-20 minutes, at least so it was to upgrade Windows 7 Home Premium to Ultimate.