Hi. This is my first post as I am a new member, but hope someone can help. For some reason over the past week, the system has installed an Administrator on our PC and we cannot get any password to unlock it. Neither of us have set a password. We have tried just about everything we can - disable/delete account through computer management; changing the password; using the command prompt but nothing works or we just get "access denied". We do not have a USB or anything to allow changes as the system is asking for. We also do not have the original disc for the 8.1 as we upgraded online a while ago. And when I tried Microsoft "help" they wanted around £15 to send a new back up disc.
Because of the restrictions, we cannot download any programs etc to assist with deletion/changes so any advice/suggestions would need to NOT have to download anything or install anything.
Many thanks in advance.