If you are looking for a , it's important to clarify that this specific version is actually free for life and does not require a paid activation key for standard use.

: Comodo Internet Security Premium is the free edition. You do not need a license key to activate its primary features. If you are prompted for a key, you may have accidentally installed the Pro or Complete versions, which are paid products.

: A system restart may be required for all premium features to fully initialize. License Tiers & Features Premium (Free) Pro (Paid) Complete (Paid) Core Security (AV/Firewall) Auto-Sandbox Technology Unlimited Expert Support Virus-Free Guarantee up to $500 up to $500 Online Storage / VPN Important Security Note Activating Your License - Comodo Help

: This paid upgrade provides a license key that activates GeekBuddy (unlimited remote support) and a $500 Virus-Free Guarantee .

If you are upgrading from Free to Pro, the additional components will often begin installing automatically after the key is validated. Comodo Internet Security Help Guide