I forgot my password (Ubuntu 16.04) & can't open GRUB now
82
How do I reset a lost administrative password?
14551
How do I remove Ubuntu's password requirement?
145864
How do I get Ubuntu to ask me for a password at login again?
124236
Why I'm not asked to set a password for Root when Installing Ubuntu?
53868
How to change the forgotten root password?
112763
Stuck at GRUB command line
5413
How can I repair grub? (How to get Ubuntu back after installing Windows?)
43496
Why does OS X show a forgot password prompt when trying to boot or wakeup screen?
86493
Why is the password I entered not visible?
41074
How do I log into my Linux laptop if I have forgotten both the login and password?
109241
How to set a short password on Ubuntu?
96248
Cannot Restore Grub After Windows 8.1 Upgrade
101684
How to password protect Grub menu
59329
Unable to login after password change, having home directory encrypted
122596
What is my user login password?
16662
I failed to open a lock. Now what?
107124
How to clear the BIOS security password on this notebook?