Sync Win10 New Password

I have disabled my Win10 login screen so that it starts without having to enter a password.

However I have just changed my Microsoft email password. And unfortunately I forgot that my PC and Laptop still have my old password. They are both starting up okay but I am worried about what might happen later.

Q1. Can I go back to my old email password?

Q2. As all my Sync Settings are turned on does that indicate I should be using the new password?

Q3. If I use the disable procedure ie "Press the Windows key + R, type ‘netplwiz’ and hit Enter." and use my new password, would this regularise things?

Q3. Should I carry on and let sleeping dogs lie?

 

I was in a bit of a flap and in my rush to get this posted I forgot to say that any help would be appreciated.

 

I would go with Q3.
The second one...

 

Many thanks Eldon I think you are right.