Hello! I need to, somehow, acess CMD in Windows 8.1 before logging in. This trick worked in Windows 7, and I need one similar to Windows 8.1. The method I tried (Going to Advanced Boot Options, then CMD, asked for the Admin's password, wich I typed wrong when setting up my PC, and so I don't know it. I don't have a Windows CD or Flash Drive. How can I do it? Thank you!