It's really unfortunate that some people still rely on Windows for their computing. There are better, more respectful alternatives but Microsoft's stranglehold causes problems switching.
This page is a work in progress but if you scroll down you'll see some rough guidelines on how to get off of proprietary software, eventually Windows, one step at a time.
Free/Libre/Open Source software is guaranteed to be supported by GNU/Linux, and it also has many other perks.
My problem is I pretty much only use my PC for games. I don't want only ~60% of what's out there, I want to be able to run whatever game I want as it's literally all I use the device for...
I hate Microsuck but they have a stranglehold on that part of the market :(