Excellent job! How did you approach the licensing matter, as in order to customise Windows installation media and in order to be compliant with licensing terms one needs to solve (and pay for) this non-trivial puzzle if it can be solved in the first place: https://download.microsoft.com/download/3/d/4/3d42bdc2-6725-... ?

I guess Microsoft has to make money somehow, but it's not funny. And the worst thing is that you somehow have to magically know this.