Netflix is an Internet-based video service. You can rent DVDs through the mail, and Netflix has also implemented a "Watch Instantly" feature that allows you to view select Netflix movies over the Internet on a Netflix-compatible device such as a computer, some game consoles, and some Blu-ray players. You can activate up to six devices at a time, so if you want to add another device, you will need to deactivate one of the six that are currently active.
Go to the Netflix website (see Resources) and enter your login e-mail and password. Click "Continue".
Click on "Your Account & Help" in the upper-right corner of the home page.
Click on "Manage Netflix-ready devices and computers".
Click on the "deactivate" button and click the button to confirm the deactivation.