The best thing I learned from Windows all these years
... was at some point borking a W2000 install for the n-th time and asking myself: why I can't trace all this and know exactly what is wrong? why "reinstall from scratch" is the only means of fixing things? A CD with RedHat was the starting point. Windows gave me a true perspective on the value of open source: the ability to peek at absolutely everything and being able to trace and change it. In addition to the other freedoms, of course, but that was the key point for me: understanding what went wrong and fixing it.
I now currently use professionally (SW development) both Windows and Linux and I wherever I have the option, I choose Linux.