Perhaps an even more thorough explanation would help.
We have a PC in a big conference room. It's sole purpose is to show powerpoint presentations on an overhead that is connected to it. Any number of different users in our (nationwide) organization may be asked to come to my office to do this. So anticipating individual login names is not practical.
These users typically keep their presentations on our network file servers. Thus, they know that when they get to my office, they can login to our domain (which would never have been done before using that PC) and retrieve their slideshow.
(This is why a local machine shared login is impractical. I have proposed having people login to the domain, download their presentation to C:, then use a generic local machine login--with the correct power settings--to run the presentation. But the higher-ups want a simpler solution.)
These users have only minimal rights on this presentations PC, which is the way I need it to be. I can't afford to have them try to install Weatherbug or some other stupid crap on this PC that creates popups or heaven knows what other problems. That would be a potential support nightmare for me. This PC should pretty much sit there and do it's job with little need for attention from me.
Unfortunately though, giving users minimal rights precludes them from changing the power settings. So posting a note that says Click Start...Control Panel...Power Management...etc. won't work. If someone knows of a way for me to give them JUST the rights to change the power options and little else, that would be an adequate solution, too.
So I hope now it is clear why I want the DEFAULT power options to be changed. Any user in our company could potentially login to our domain on that PC (having never done so before) to give a presentation. That creates a new profile for that user, which takes the default power settings, but they can't change them. And in this case, the default settings are undesirable.
This shouldn't be that difficult. Of course, this is Microsoft we're talking about.............