Panic attack

The other day I bought a satellite navigation system for my car. Usually I don't read the instruction and I start hacking away at once, but this time I did it. The first thing I noticed was a little silver plate that says Windows CORE. I went into panic: "oh no...I bought something with Windows...what the fuck...there was nothing written on the box...oh no". Then I calmed down and I resigned myself to use it.

God of the Open Source please forgive me, for I have sinned.