If you're having trouble watching or recording TV on your computer, try using the Set up TV tuner troubleshooter to fix the problem. It makes sure that your computer is receiving a TV signal, and that your TV tuner is connected and configured properly.
To make sure you have the most up-to-date troubleshooters from the Windows Online Troubleshooting Service, your computer should be connected to the Internet. For more information, see Troubleshooting in Windows.
Open the Set up TV tuner troubleshooter by clicking the Start button , and then clicking Control Panel. In the search box, type troubleshooter, and then click Troubleshooting. In the left pane, click View all, and then click Set up TV tuner.
If you're prompted for an administrator password or confirmation, type the password or provide confirmation.