Is there a keyboard shortcut for 'Open file location' within Windows Search?
Select a file, press Alt+Enter to open the properties, then press Alt+F for "Open File Location".
You could use the menu button on your keyboard, assuming you have one. Replacing your step 4 with the following has what I think is the desired effect:
- Menu
- Arrow keys to "Open File Location" option. Update: Or just press i - see comments.
- Enter
Now, it's hardly a shortcut, but since you're arrowing to the file maybe this isn't too much of an additional chore compared to having to mouse as well?