Keeping the software current Windows
Modern computers contains al lot of software. A fully updated fresh windows installation contains well over 50.000 files - and before it being “usable” with the most common applications, plugins, addons and extensions for the software you use on a daily basis, you’ve probably added so much more, that you’ve completely lost count of what’s been installed.
It’s a pretty bad situation in terms of security and software maintenance/updating.
WindowsUpdate has come part of the way. It’s easy and simple for even common users to use and stay fairly current with the core windows system, but it only covers a small piece of the puzzle. While most windows machines I’ve encountered seem to have Office installed, WindowsUpdate doesn’t cover it - OfficeUpdate does, but how many people know of that? - and run it on a regular basis?