In addition to simply running a process some procedures can be further specified or refined using the Shift key.
The Bake Surface feature has one of these options. Simply hold the Shift key down while running the command and a dialog box will open giving access to parameters associated with that command.
In the case of Bake Surface, several defaults can be overwritten.
Taking the time to explore those options can save a lot of time.
For instance, removing materials or decals that have been baked as they may no longer be desired or required.
Right Click on Model in the Project Workspace (PWS) listing
Hold Shift key down
Select Bake Surface
Select Ok (or Cancel if you've changed your mind)
Running Bake Surface without the Shift key will result in surfaces being baked using default options.
Remember: Before exploring a new feature, save your Project Files and experiment with a copy of your file.