Windows Activation

I'm unable to activate my version of WIn10. It is installed on a Compaq machine which I bought from new and originally was running Win7. I ran an update at some point and upgraded to Win10 but I didn't activate it (I'm not sure why).

Last night an update ran and I have what appears to be an new install (there is a windows.old folder on the c drive). When I click to activate it says that my previous operating system (Win7) wasn't activated. I have tried inputting a new product key (using the serial on the sticker of the box for the Win7 license) but it is not accepted.

I have seen that there are license keys for sale on ebay. System properties says I am running Windows 10 Educational, if I was to buy one of these keys would it fix the problem. Or else how can I fix this.

Thanks.

Try runningthis see if it gives you the key ProduKey - Recover lost product key (CD-Key) of Windows/MS-Office/SQL Server

HI ran showkeys it says the following:

Product Name - Win10 Educational
OEM Key - Win7 OEM marker in signature

Do they activate?

No i get an error that says unable to connect to your organisations activation server. Should I not be able to enter my old Win7 key and use that to activate?

If I input my win7 key into keychecker it reads it as a: Win7 Home Premium Key OEM:COA. If I try to change my product key to this I get the spinning dot circles for 10 seconds or so before it returns to say the key didn't wok.

When you got 10 did you login with a MS account as it should have stored your details on the server and no key should be needed

During upgrade to Windows 10 you must activate first with your windows 7 product key, it will store in Microsoft server.

Try contact Microsoft support i think they can activate for you, provided no hardware changes in your pc.