Thank you for addressing us this issue. Welcome to Trend Micro Community!
We checked the details of your subscription and it seems that you already have the latest version installed on Main-PC. Did you mean that the program is stuck on installing updates to your computer? If that is the case, kindly refer to this link for instructions:
We'll also appreciate that you send us a screenshot of the issue you're encountering. By the way, you can also contact Best Buy if you wish to be assisted via phone since it appears that your license was bought from them.
Here is the Best Buy hotline: 1-800-433-5778.
Kindly update us regarding this matter. We'll assist you in case the problem still persists. Thank you! :)