**It _was_ once the best firewall on the planet! _Was!_** Around the time Windows 10 was released, Comodo ceased to put any development effort into it. Soon, its Containment feature became unusable. Five years later, with the release of Windows 10 20H1, its compatibility with Windows declined to such point that it impeded creating or changing networking adaptors. Neither Hyper-V nor Windows Sandbox work well with it. So, it is the end of an era for me. Sorry, Comodo Firewall. We had a bash! I bragged about having you. But we're done.