Windows 10: Windows 10 Pro Product Key not valid

I purchased Windows 10 Pro on Amazon on 1/16/2019 for work. Installed in on a desktop workstation, no problem. Then decommissioned the workstation last year. Now I have a laptop that was purchase by the owner and has given to the business with Windows 10 Home, so I attempted to upgrade to Windows 10 Pro with the product key of the decommissioned workstation and was told that it is not a valid product key. Is there something I should have done to let Microsoft know that we were decommissioning the workstation? If not, I have a valid product code, how do I use it to get Windows 10 Pro on a diffe

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Valid Win7 Product Key not accepted by Win 10 upgrade

Hi,

I did not realise I had been at all vague, my apologies.

Unfortunately my neighbour now has his laptop back as I got nowhere. I have suggested he wait until the windows 10 upgrade system makes it available through windows update (it is in the queue).

As stated, I have tried running from the media created by the media creation tool to a USB (this is what I used to successfully upgrade my laptop and surface Pro). I have also run the media creation tool and opted for it to upgrade directly rather than save the files.

The operating system is Win7 Home premium OEM version. The key is valid and I re-validated it to be sure with the MS online actvation system. The laptop is 64-bit.

On each occasion it goes through the initial install steps and then gets to the screen where it asks for the product key.

On this screen there is no skip option and as the product key is not accepted, the only option is to cancel the install.

For some reason the upgrade seems to be taking a different path on this machine and does not give the skip option.

Regards
Mike

 

Window 10 Pro product key says it is not valid.

i just upgraded my windows 10 to pro edition but the product keys i have entered were not valid so what could i do???/

 

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?