No I was surprised that they were able to stay in business after the launch of vista and the windows 8 disaster.
Given the alternatives, I am not surprised people have stayed with them. Not, because the alternatives are bad, but because of the investment in terms of money and human skill sets.
The real alternatives are MacOS and Linux, but they have their own issues. MacOS limits your hardware choice to one company, even if some may argue it is the 'more user friendly OS' and Linux still doesn't feel like it has the user facing polish it could have, then add to the fact that there doesn't seem to be a desktop UI that seems to have a strong continual investment in improving the experience that the lowest common denominator of uses would appreciate.
The way I see it:
- Linux is a great server OS, but weak on the desktop
- MacOS is strong on the desktop, but weak on the server
- Windows is average everywhere
The above also indicates why I believe many companies choose Windows: it may not be the best at anything, but works well enough for must general use cases and allow companies to deal with one vendor and not need a high level of expertise.