Windows 10: My Windows 10 will not activate with my Windows 7 Key

I have an older computer that was not functioning properly, partly from a failed upgrade to win 10 when they first offered it. So, in an attempt to rehab the computer I grabbed the window 7 Pro key from it XXXXX-XXXXX-XXXXX-XXXXX-XXXXX format then wiped the drives. I installed Windows 10 successively and tried to enter the Windows 7 Key from the previous install and it would not activate. I have read online that I can do it this way, am I wrong?

:)

 

Installing Windows 10 using Windows 7 key

Nope, you need to install Windows 10 first and make sure the Windows 7 key is transferred to your Windows account after you've installed Windows 10 (not quite sure how that works). I missed the last step and I could not activate Windows 10 after a re-install... Microsoft seem to have done everything they can to make it a PITA. Also, it's technically too late to do this now anyhow, as the upgrade offer has expired. But KMSPico works quite well...

As for getting rid of Windows, delete the Windows folder.

 

Installing Windows 10 using Windows 7 key

Two quick ways to use your Windows 7 key during the install:

1. When asked for the serial #, put in that Windows 7 serial # and continue on. It should activate as soon as it hits an internet connection.

2. When asked for the serial #, at bottom of window click on the I don't have a serial # text (or whatever it says). It will then ask what version you want to install, ie. Home or Pro. Be sure to install the right version that matches your Windows 7 key. Then once you get into windows you can activate by putting in the key. Some people prefer this method, not sure why honestly. Easier to do #1, since the installer will see your key and know which flavor of Windows 10 you are trying to install.

 

Installing Windows 10 using Windows 7 key

Thank you, but I still want to know if I can do a clean installation of Windows with my new SSD whilst my old Windows is still installed on the other pc?