📎 AI Summary:
The thread discusses a user who upgraded from Windows 8.1 to Windows 10 using an ISO file but encountered issues activating Windows after the upgrade. One responder shared their experience of repeatedly trying to activate until it succeeded, indicating that activation can sometimes be delayed. Another contributor suggested that attempting to upgrade from Windows 8 Pro to Windows 10 Home may cause activation problems, implying version mismatches could be the issue. Overall, the thread highlights common activation challenges following a Windows 10 upgrade and hints that patience or specific version considerations may resolve them.

FrankDM2

New Member
Joined
Jul 29, 2015
Messages
2
Thread Author #1
Hello all

I today downloaded the Win10 ISO with Microsoft's "create installation media" tool. I then extracted that ISO to my USB drive and used it to upgrade my activated 8.1 installation. It did not ask for any key during the upgrade process.

Now, after installlation I cannot activate the product, if I try to enter my 8.1 key it says it is invalid. What do I need to do ? I think it expects a Windows 10 key... it does have a key entered by default that is not my 8.1 key (I can only see parts of it as Windows asteriks most away but the last few digits do not match my 8.1 key. But this one does not activate either...

Thanks
 

Last edited:

Spotted Dog

Extraordinary Member
Joined
May 7, 2009
Messages
16
I tried to activate several times and kept getting the error, but it finally took it and is now activated.
 

ussnorway

Windows Forum Team
Staff member
Joined
May 22, 2012
Messages
4,597
@FrankDM2 Did you perhaps try and put pro onto a free 8.1 upgrade from 8... that would need the home version mate.