We have a Windows Server 2008 Standard Domain with a mix of XP Pro and Windows 7 Clients. Printer allocation is by a mix of Group Policy (for the Win 7 clients) and a printer vbs. Problem is on boot up something is running that kills all existing printers on most clients and they end up with just the default photocopiers as the only listed printers.

The students can find and connect to the classroom printers when it comes to printing but next log on they have dropped off again?