About performance> try monitoring a non trivial Windows program with Procmon during it's start. I found the intensity of registry activity is quite extreme. May

About performance> try monitoring a non trivial Windows program with Procmon during it's start. I found the intensity of registry activity is quite extreme. Maybe many of those operations (many are by Windows itself) are not necessary, but in the current state, I feel happy that the registry is designed to be performant.