How can I change my username?
7110
How can I change my name on a Stack Exchange site?
137466
Etiquette for username changes
37381
Change the Author Slug from Username to Nickname
154852
How to change my YouTube channel name
71580
Change default username from "Unknown" to "User{number}"
6220
How do I change my profile picture, or avatar?
16334
Rename default user directories
5480
how to change my hostname?
117603
My username instead of my Gravatar in the top bar
52559
How to change password using usermod?
58071
How to safely change username and hostname?
434
How do I change a user name in Windows 7?
113488
How do I change the User Profile location in Windows 10?
73204
Renaming user name
69126
How can I change my password?
33666
How do I change my Minecraft username during the 30-day restriction?
32551
Change guest username