TeamViewer has officially announced that support for versions 11 and 12 will end on December 31, 2025 .
Ensure the remote machine is not running a newer major version than the local machine. Best Practices for Remote Desktop Security
If you have a valid license for version 12 and need the installer for a specific legacy environment: teamviewer 120259 download free
Ensure the name of the signer is exactly or TeamViewer Germany GmbH and that the signature is valid. Scan with Anti-Malware
Are you connecting between the (e.g., Windows to Windows) or different ones (e.g., Mac to Windows)? Scan with Anti-Malware Are you connecting between the (e
Set a secure, permanent password for unattended access if needed, or rely on the randomized password for one-time support. Security Best Practices for Remote Access
Disclaimer: This article is for educational and informational purposes. TeamViewer is a registered trademark of TeamViewer Germany GmbH. Always comply with software licensing terms and cybersecurity best practices. TeamViewer is a registered trademark of TeamViewer Germany
If you are using it for personal troubleshooting, select this option to utilize the software for free. Important Safety Warning Regarding "Free" Software
: It allows connections between various operating systems, including Unattended Access
If you're looking for the most secure and up-to-date features, consider visiting the official TeamViewer website to download the latest available version.
Ensure that (TCP and UDP) is open. This is the primary port TeamViewer uses.