1
Open the Settings App.
Go to Accounts - Sign In Options.
IN there, is a setting to use Windows Hello to sign into Windows, disable that setting.
2
Click your Start Button, then just type netplwiz and press Enter.
On the resulting dialog, there should be a check-box to require users to enter a password, disable that, then when asked on the new popup window, you must provide your full login details (Microsoft account Email address and Password) and apply that setting.
That should remove the need to log into Windows, your PC should then just boot up to the Desktop.