Can only enter as guest ,lost password
82
How do I reset a lost administrative password?
157146
No user name/password required when exploring from live USB?
109241
How to set a short password on Ubuntu?
61493
How to stop my machine asking for multiple passwords when I log in?
86493
Why is the password I entered not visible?
73383
Why is the guest account missing/broken in Windows 10?
86170
Can't login to my user account
4227
How do I login as root?
83497
Change user password while password is empty
46827
Windows 8 locked because the password were lost, how can I change it without needing to reinstall it?
113484
Windows 10 Asks me to Enter a Password
59329
Unable to login after password change, having home directory encrypted
69126
How can I change my password?
84473
sudo for users with empty passwords
16597
No password prompt at sudo command
27496
Encrypted Home... Forgotten Password, but no Passphrase
124795
sudo does not ask for password