Remove permission popups in Windows Vista

So once in a while I have to work on a Windows Vista PC when porting applications we create at Apollo Media. Windows is fine, but one thing which is really, really, really annoying are those permission popups when you want to rename or copy something. Normally I can live with those popups but yesteday it got worse: I wasn't allowed to rename a directory (?!). So I asked google how to fix it... and yes this is the solution:

• Start > Control Panel
• Search for "User accounts"
• There you see a link at the bottom "Turn User Account control on or off", click on it
• Then make sure the checkbox there is unselected!
• Reboot... and you're happy