Check to ensure you have entered ALL the License Key information EXACTLY (case sensitive, spaces, etc.) as we provided in your order confirmation email. Even one missing or wrong letter or number, wrong case (e.g. lower when it should be Upper), etc, will cause your License Key information not to validate. (NOTE: If your Business Name includes an apostrophe or period, click the "Ask a Question" tab and let us know, as we've had some instances of License Keys failing to validate when apostrophes are in the Business Name.)