Ensure your user profile has permissions to C:\Program Files (x86)\think-cell to ensure the license can be verified upon launching PowerPoint. Moving a License Between Machines
If your portable deployment reveals an expired or missing key, you can inject a new key silently using the Windows Installer (MSI): how to check think cell license key portable
I can provide targeted steps to resolve your licensing block. Share public link Ensure your user profile has permissions to C:\Program