In the past, when the trial ('free' version) expired, WMI and AVI exports were still available. Perhaps the policy has changed; a company rep will have to speak to that.
You might try an UNinstall, via Control Panel|Programs and Features. Then reinstall. If during uninstall there's a prompt to revert to the free version, make that choice.
Be sure to save your project first, so that it can be reloaded.