Account changed after password change

[Ward Webber]

I've been using my original password for several months to log in to Windows. Yesterday I was prompted to change my password, so I did. Now, my desktop image has reverted to the default "window with smoke", most of my desktop icons have disappeared, a navigation app that normally runs on startup is not there, and the bottom toolbar looks different. Even my email app, Thunderbird, acts as if I had never used it and I had to set it up again.

It looks as if my account identity has gone back to a default "new windows 10 user" setup. How can I restore my old setup?

 

[Trouble]

Have a look in C:\Users\ see if there are multiple profile directories located there that may be associated with your current and former profile.
Check the dates and contents to see what you can see, for instance the contents of "Desktop" may hold some familiar icons.