Change windows user password

Hello,

Can anyone help me with the following.

I have created a docker container in the dockerfile I have used the command RUN add user /add this works and i’m able to connect to the process with that username and password.

Now I want to use this image multiple times but I want to have a different password in each running container
How can I achive this?

The containers are running on windowscore 2019

Thank you in advance