Backwards compatibility is an important feature of Windows. People can rest assured that their old hardware has some degree of compatibility with a newer Windows version. Also their old games and applications are not rendered automatically obsolete with any new Windows version. Of course I don't mean that hardware and software working on Windows 95 should work on 11, but it SHOULD work on 98 and at least XP if not higher. While with Mac OS any new version threatens to block old devices and old applications. Maybe not from one version to the next, but certainly 2-3 versions apart. For example, the minimum requirement for Mac OS utilities, was 10.6, then went 10.8 then 10.12, then 10.15 now you are not sure, you may need Mac OS 12 or higher. Windows applications from XP still work in 11, and almost any Vista 64-bit or higher driver can be installed in 11. VERY convenient. When I evaluate a new Windows version, the first thing I check is compatibility, not security. Does it work on my current "old" 3rd generation system? Yes, that's a plus. Does it work on older systems? How older? Do my old favorite applications and games still work? Yes, that's a plus. No, this is bad, but as long as there is a newer version or workaround, I am OK with this. With Mac OS or Linux you never have this sort of backwards compatibility, let alone they support much less devices and applications than Windows to begin with, so this is a big disadvantage for me. As for security most of us old Windows users have learned to use our brains, unlike Linux or Mac OS users that think they are immune to viruses. Guess what? They are not immune, they are just too small user base for any hacker to spend time creating a virus for them. Hackers want to affect as many computers as possible, so they target Windows users that have much larger user base, not because it is easier to infect them. Oh, this thought never crossed your minds? You better use your brains in Linux and Mac OS too, don't rely solely on their security features. They might be a little harder to hack, but not unhackable.