Given a used laptop with Ubuntu installed, how do I get past the password demands?
82
How do I reset a lost administrative password?
112982
How do I turn off all the password prompts?
20180
Bypass BIOS password set by faulty Toshiba firmware on Satellite A55-S1065 laptop?
96888
Default Password in Ubuntu 15.04
28308
Reset or remove the BIOS password on my laptop
147976
What do I have to do before giving away my Ubuntu machine?
12441
How to reset my password without rebooting?
33713
Forgot Password: what is the best method of implementing a forgot password function?
150103
How can I retrieve an entry from /etc/passwd for a given username?
150956
How can I change a user's password?
130082
How to change root password in ubuntu?
19524
How can I determine the sudo password?
97085
How can I make shutdown not require admin password?
129904
How to get Ubuntu to ask for my password at login screen again?
67876
Is there a password manager for Ubuntu
4382
What is the default root password?
2805
What can I do if I forgot my Windows password?