This is the most effective "pro" fix. It allows you to manually remove the "grace" keys that cause the 0xc004f017 error.
You are trying to use a Retail key on a Volume Licensed version of Office (or vice versa). error code 0xc004f017 office activation
The tool will scan your registry and system files to repair the licensing tokens automatically. 4. Check for Proxy and VPN Interference This is the most effective "pro" fix
Navigate to your Office folder by pasting the following command (adjusting for your version): error code 0xc004f017 office activation