New
#1
Product Key (Win 7) not accepted when upgrading to 10
I started the upgrade from Win 7 Home Premium to 10. I entered the product key, but get the message "Product Key didn't work". I have repeated this several times - I have the original disk & label, checked the key is correct via Belarc Advisor, have a message from Microsoft stating the system key is genuine etc.
I see from Belarc that there is an OEM number + the Product Key that I have on the disc. I have tried both with same result.
My broadband is very slow, so I downloaded the upgrade files again to a memory stick on a friends PC. The result is the same.
Any advice greatly appreciated.