Windows is insanely bloated. Trolls jealously hoard their treasures. Windows jealously hoards system resources. Trolls don't play well with others. Windows doesn't run other programs very well.
Trolls hate competition and throw rocks at it.
Microsoft hates competition and throws lawyers at it. Trolls gloat loudly. Microsoft toots its own horn loudly. Trolls fear the light of day. Microsoft fears the light of cluefulness.