If are having problems during activation call our customer care executive and they will help yours for sure, mcafee.com/activate third-party store sells Retail Cards that enable you to install setup online. This ensures that the antivirus application you using for installation is most recent version. We can assist you to redeem Retail Card & activate McAfee security in your PC, Laptop or your mobile devices also. We will guide to Login to your McAfee account. Diagnose, Troubleshoot & Configure mcafee security installation with us if any issue if occurs during installation.