I'm beyond skeptical that this competition regulation prevents Microsoft from say ... having Windows roll back to the last known version of a driver/extension after a failed boot (or several). Or from having a hyper-minimal super-nanny API that uses a signed network call to add a level of control over the loading process. Or from having a built-in phased rollout API that only permits a rollout to increase in scope as more confidence is gained. And probably ten more ideas! Microsoft didn't trigger this outage, but it's very worrying if they disown it. There's a lot the OS vendor can do.