Open the sent to the address used for purchase. Click the ACTIVATE link within the email.

Here are some frequently asked questions about TeamViewer license keys:

TeamViewer does not typically use traditional, standalone "license keys" for modern subscriptions; instead, sent to the email address used during purchase. This account-based system ensures that the license follows the user or company rather than being tied to a single static key. How to Activate Your License

You’ve seen it. You’re 30 seconds into rescuing a friend’s crashed PC. The connection is smooth. Hope is alive. Then, the screen freezes. A popup appears. A timer begins: "Session ends in 45 seconds."