Go to Add or remove programs, find TeamViewer in the list, and select Uninstall.Then install the free version of TeamViewer. If the commercial version of TeamViewer is installed, you need to remove it, clear the registry and folders from the remaining entries and files. If one user uses a free one and the second uses a commercial one, then the commercial version will consider the use of TeamViewer for commercial purposes. Make sure that you and the users you connect are using the free version of TeamViewer. If you use TeamViewer for personal use only, here’s how to fix the TeamViewer trial expired problem. Paid (commercial) version - the number of connected devices and the duration of the sessions are unlimited.Free version (non-commercial use) - designed for home use and connecting to a small number of remote devices.TeamViewer Versions: Trial Expiration Problem
