How to log in without any users (Administrator password) in Windows 8
2805
What can I do if I forgot my Windows password?
34336
How do I reset the Windows XP Administrator password?
14589
Execute sudo without Password?
41074
How do I log into my Linux laptop if I have forgotten both the login and password?
17915
force to forget logins
32925
What steps to add a user to a system without using useradd/adduser?
46827
Windows 8 locked because the password were lost, how can I change it without needing to reinstall it?
118205
Allow given application to run as administrator, without prompting user for credentials
146209
How to hide admin account and only show main user at logon screen in Windows?
20155
How do I run specific sudo commands without a password?
157146
No user name/password required when exploring from live USB?
21206
How to make password-less login work
129024
Automatically logging into Windows XP
27777
Having no password on windows 7 log in physically, but with password through RDP
75105
Unable to login to a domain computer using a Local Administrator account
32890
How do I set a password for guest login
119958
Disable a user's login without disabling the account