btw I've just entered those regfiles jkey provided into GuiRunOnce so they autoexec on the first logon and also preconfigured the regional settings to whatever I need in nLite - during the first boot the cmd launches bla bla whatever (takes like 2 secs) and I already have the regional settings set (location, standars and formats and also the keyboard layout) so it's all good thou I still have to change the timezone manually during the install even if I had preconfigured that into winnt.sif, but I guess there might be some more posts about it. if not, I'm gonna start bugging people