Now I see. The keyword is:
kiosk
For years companies have used off-the-shelf- OS to run a stand-alone system for retails POS and travel guides and that kind of thing.
Yeah, it looks tacky when p[people see the windows logo at start and end of a session. One workaround is to leave the system on all the time and use hibernation mode. Or, you can contact whoever sold you the kiosk. Or did you do the whole design yourself?
I do NOT work for these people. Here is a phone #
Call at 1-888-569-5467
Be coy and maybe they will tell you if it is easy or noit.