Interesting discussion so far. My Windows machine is Windows 10 Home, 64-bit, version 1709. I am not connected to a Microsoft account (no need since my requirement for all key software is that they run on Windows, Linux and Android-- therefore, no MS Office). I do run as admin and have probably since win95. Back then, at least, there were just too many annoyances if you didn't. I've always thought that Windows version of an admin account really isn't quite the same as root on a Linux machine, more like setting generous permissions in a Linux user account, but I'm certainly no expert. So far, I have had good luck with windows in that nothing bad has ever happened. Doesn't mean it won't. That's what "lucky" means. ;-) Maybe not completely luck. I do pay attention to things.