Keeping a training network ?

I have 12 Win 98 Pc’c running of an NT server for a training network. The students are trained in all MS office products. The problem is after a training session many of the PC’s are changed eg desktop icons moved, deleted etc. So rather than go to each and every PC and manually adjust the setting to reinstate every PC to their original configuration is there a way I can automate this?
Can I set up one PC correctly and then mirror that PC’s configuration to all other PC’s. All PC’s are the exact same model type.