I have a system with four user accounts in addition to Administrator. The users tend to change their names from their actual names to Nicks or stupid things. I would like to prevent them from having this ability or to have it revert back after computer is rebooted. I would imagine it's a registry setting or something. Or maybe I need a script to do the revert??

Dont give them admin rights.

you need to create the users with a limited account instead of adminstrative then they wouldnt have the power that you want them to have

I don't want to restrict all the items that are restricted with a limited account as they will constantly bug an admin for things. I was hopping there was some sort of registry entry like UserNameChange=0

Or maybe a setting in group policy gpedit.msc

If they are bugging an admin for things, obviously you havent thought out the build for your users well enough. They can do what they need to do if you just spend the time to figure out what they need to do.

Jim