I maintain a bunch of PC's and 2 of them won't update anymore with some vague error code that only has a microsoft community forum post as search result. I'll get it fixed, but Windows update is not quite flawless and a non tech person would be lost at this point.

People seem to be having a hard time grasping that most of the time it works great on both Windows and Linux. Majority of people will have a solid experience. But on both platforms, when things go to shit, you need to get your hands dirty. And with that final thought, I like to add that because of it's openness, is usually easier to troubleshoot an issue on Linux because it doesn't obscure what it's doing unlike Windows ("Please wait...", "Setting things up", ... dafuq u doin, it says 100%, is it doing anything still or is it hanging?). Windows' vagueness has been a pet peeve of mine and it's only getting worse. I'm perfectly ok shielding it by default, but give me a verbose option.