The aircraft must have been running Linux. That's what you get when you use a free operating system, written by a bunch of hobbyist coders. Linux can't even compete in the same category as Windows. Windows is far superior. Linux doesn't even have an easy means for DACL manipulation and the list goes on.

It was built by aliens some time ago.

Let's be frank my good man. Windows is a better operating system. If you want to spend hours compiling this and compiling that then get a Linux box. Objectively Ubuntu has come real far as a distro, however, there are things that still don't work out of the box and in this area Microsoft excels. In the end you will become frustrated with using Linux on a daily basis and eventually install Windows, so it is better to get the license at a discount now.