license, changed computer and OS

I changed to a a new computer with Win 10 (from Win 7). How can activate a free license. I copied the entire em folder from the old computer, deactivated the account there , imported the folder to the new computer and got it smoothly set but can t activate the license. What should I do? ,

Your process is exactly what needs to be done. After deactivating the license in the old computer, you should be able to activate it in the new one.

Maybe you have it wrong. You can have it resent to you at https://www.emclient.com/lost-activation-key

Or, another option is to simply register for a new Free License using a different email address.