While gaming may not be on Linux yet, a lot of professional software devs are making more and more linux-compatible software making it more viable in the workplace (the place where it actually counts). I have a lot of family working for various software and networking companies and the shift is slow but steady. As far as windows goes itself, I enjoy it. It's easy, user-friendly and doesn't require much thought to actually get running. I'm also well aware of what can happen if I'm not careful with my browsing. However, I have a failsafe that I built myself to reset my computer. Linux, however, takes a bit more configuration and getting used to. A lot (a vast majority) of people don't have the time or patience to mess around with linux. As far as business goes, by your logic, all businesses are sadistic. One goes into business with the intention of making money so being "money-hungry" is a given. However, in terms of microsoft's case, a lot of that money goes into actual research and development (either directly -i.e. making new code- or indirectly -i.e. sending kids to school-). You also have to remember that windows is product to be sold because it puts food on people's tables (from the most basic to most extravagant tables). Linux, however is free. It doesn't cost a dime. Like it or not, friend, windows helps people. Why don't you find some credible sources instead of using websites like TechRights. I've found multiple credible websites that deny TechRights as a credible read. My advice: Learn to browse the web. Make sure you research what you're downloading and pay careful attention to advertisements and adware downloads. Get a new computer, as it's likely that whatever was in the depths of your computer is still there, if it was actually there. If it was just a pop-up that was telling you that files were infected and that you should buy such and such anti-virus, that program is the virus and just requires a bit of lag-inducing to get around it.
My final statement is to stop calling other opinions baseless, when the only source you produced wasn't completely credible yourself.
Just for the record, LOF, all computers will degrade. Obsolescence is a real thing as well.