Activation Failed – Unknown Error [–77]
This is typically because direct access to the Internet based License Server is blocked.
Click on the link Activate using a web browser, a file, email or phone.
Then either Activate via phone or email, or:
1. Click on the link Use the browser to get an activation certificate.
2. Enter the installation key and license code into the web page and click Generate Unlock Code Certificate.
3. Paste this certificate back into the open section, and click Activate.