Lost user account and password to laptop
First day back after the holidays and I have done a very stupid thing!
I have a teacher's laptop, which was set to log onto the old domain at our old school site. Over the holidays we moved and are now on a new site with a new domain (but which has the same name as the old domain).
So to take the laptop out of the old domain, I set it to be part of a workgroup instead. Rebooted the laptop just at the moment when I realised I had no idea what the administrator password was. Now I can't log into the laptop at all with any combination of password / user account that we previously had. I've tried booting to a DOS prompt in safe mode, but still get asked to log onto Windows first.
Any thoughts to rescue me from my pit of stupidity?