Anti-virus definitions, not really exhaustive security maintenance. Defender is their AV. The firewall/kernel isn't included, for example How important that is

Anti-virus definitions, not really exhaustive security maintenance. Defender is their AV. The firewall/kernel isn't included, for example How important that is, no idea! The firewall is probably passable but I generally don't know your risk profile. Applications and the rest of the system offer a lot of surface area