To activate a Roku streaming media player, connect your Roku device and boot it up; an activation code appears on the screen that must be must be entered on the Roku website in order to link your device to your Roku account. Follow the prompts for successful setup.
If you don’t have a Roku account, the device prompts you to create one during setup and stores your personal information and settings. Keep in mind that although a Roku account is free, the system asks you to provide payment information to keep on file in order to facilitate future purchases on the Roku Channel Store. Acceptable payment methods are Visa, MasterCard, American Express, Discover Card and PayPal, as of 2015.