Activation for our products is tied to the email address and password that you use for your ON1 account.
If you have purchased, you can activate your copy of ON1 software by launching the application and selecting the "Sign-In" button from the top-right hand corner of the program. (If you haven't purchased, there's no need to sign in. See this trial article instead).
Clicking "Sign-In" will bring up the sign-in window where you can enter your ON1 account credentials (email address and password):
If you have used all of your trial period, or have previously signed in to the application, you might see a screen that looks like this instead. Click on "Owners Sign In" to reach the sign-in menu:
For help with activation issues, please see this page.