If Microsoft did not advise OEM's to preinstall Windows, the cheapest desktops and laptops would be those with a GNU/Linux distro (no Windows license). Then per

If Microsoft did not advise OEM's to preinstall Windows, the cheapest desktops and laptops would be those with a GNU/Linux distro (no Windows license). Then perhaps Linux would have a wider adoption on the desktop. And if Linux had any significant market share (I'd say even 10-20%) you would have native Linux versions of most of that software - not entirely unlike what you have on OS X. Edit: clarified.