How to Change Forgotten Password on WSL (Bash for Windows)

So you have installed Bash for Windows, but forgot your password!! That’s easy to fix, and here’s how:

a. Find your username by running Bash for Windows and executing whoami

$ whoami
victor_m

b. Change the default user to root by running the code below on a Windows command prompt (cmd.exe)

LxRun.exe /setdefaultuser root

c. Now change the password with bash -c 'passwd [user]' (also on the Windows command prompt)

bash -c 'passwd victor_m'
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully

d. Change the default user back to your user

LxRun.exe /setdefaultuser victor_m

e. Profit