Can you make Windows 10 auto-login one specific user?

On my Windows 10 machine I have two users. One (A) has no password and one (B) has one. I want Windows to automatically log in user A on startup.

It works when that user was the last one to log in. But when user B was the last one, the login screen for B shows up and i have to switch to the other.

Can I prevent that and auto-login A?