: Legacy activation servers for the 2012 version may no longer be operational, preventing even valid keys from working.
Users seeking free protection should note that Comodo (Xcitium) still offers a free version, though it often prompts users to upgrade to "Pro" after a 30-day period. Comodo Forum Activation Process (Historical) comodo internet security pro 2012 license key work
Searching for free license keys for a software version from 2012 is generally a bad idea for several reasons: : Legacy activation servers for the 2012 version