
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 You can see your TeamViewer ID on the main screen when running the application. The only way to remove the restriction is to reset TeamViewer ID (or purchase a license). In this case, you can try to reinstall the TeamViewer, but that won’t help you. The trial version TeamViewer expiration message usually appears after a couple of days when using the utility. Please follow the button to purchase a license to continue. We appreciated your interest, but our software must be licensed for professional work. Your connection has been blocked because of very high activity level. In TeamViewer version 15, the message about the restriction on using your copy of TeamViewer has changed: Your session will be terminated after 5 minutes. Please note that the free version may only be used for personal use. This software seems to be used in commercial environments. The commercial use message in TeamViewer v14 looks as follows:

If the TeamViewer online service decides you are using the tool for commercial purposes to connect to multiple customer computers, a warning window may appear: If you are using a free version of TeamViewer to connect to different computers (for commercial purposes), there is a high probability that your remote connections via the TeamViewer will be limited to a value not exceeding five minutes, after which the connection will be terminated. It allows remote users to perform a remote connection to your computer, and vice versa.

After installing TeamViewer and its first connection to the network, the program receives a unique identification number (ID).
