File Explorer Ribbon Settings Registry Fixes contains every possible registry settings to change how you view the File Ribbon in File Explorer.

The registry files can be used as shortcuts to change how the File Ribbon is viewed in File Explorer or to fix a problem when it's not working as expected without having to edit the registry as explained here.

Choose the reg file that accomplishes your goal, double-click it and confirm you want to make the changes when prompted. Close File Explorer before you begin or restart File Explorer afterward.

Each one is named by what it will do:

Allow_Users_to_Start_File_Explorer_with_Ribbon_minimized_or_expanded
Always_Open_new_File_Explorer_windows_with_Ribbon_minimzed
Display_full_Ribbon_when_File_Explorer_opened_first_time
Minimize_Ribbon_when_File_Explorer_opened_first_time
Never_Open_new_File_Explorer_windows_with_Ribbon_minimzed

As always, back up your registry first.