They are each doing something "right" to attain those numbers, completely different sorts of things in each case, but it's no virtue in either case, just a mechanism that works in the environment they operate in.
In both cases they are not doing something right, they are doing something effective.
At the end of the day, a typical McD's burger consists of carbs (buns), 1 to 2 meat patties, some condiment and some basic veggies. How that's garbage I fail to follow.
Food is not garbage. Elitism like what you're displaying is garbage.
Is Subway garbage too? It's again, affordable, provides all nutritious daily values and some people don't have the means to Whole Foods their diet. Ridiculous argument...
Windows is the most compatible, most widely usable and useful OS in existence. My friggin Dell laptop can't even run Ubuntu without esoteric commands. The downvoted comment below is absolutely correct. Come back down to Earth.
Microsoft pays billions of dollars to make itself the default on new OEM machines. As well as providing free or heavily discounted licenses to school districts to ensure the next generation only knows about Windows.
Those 1.2 billion installs are the result of aggressive (and at times legally dubious) business decisions, not 1.2 billion individual choices to install Windows.
Let's not forget the vast majority of people compute on iOS or Android now too, not Windows.
The reason Linux (sans Android) continues to be a meme in the consumer space is not because Windows has aggressive marketing behind it.