Im running windows 10 and i have avast premiere but when i enter in my license file nothing happens.
How are you entering your license ?
Is it the Activation code or the license.avastlic file ?
And what exact version of avast ?
It is an avast license file and my version of avast premiere is 11.1.2241
I enter it through avast. in settings>subscription.
Try saving it to your hard drive (if it was attached to an email) and double click it, avast should open it and insert it into the program.