To redeem a McAfee retail card or code on a PC, laptop, or mobile phone, first look for your 25-character activation code, which can be found on the retail card or in the email you received after purchasing an eCard. Open your browser on your PC or laptop and go to mcafee.com/activate web portal to redeem your product key or code. If you don't already have a McAfee account, you can es... https://www.mcafecomactivate.com