Yes, I know that I can google it, and I did. My problem is that I've opened files using Blender 2.78c so I can't copy previous settings. Tried the other versions of 2.78 as well but the option isn't there anymore. Is there anything I can do?
If you are talking about user preferences and startup file, you can access your old blender directory: go to the appdata/roaming folder (type Windows Key+R and then %appdata%) go to the blender foundation folder. Then 2.78 => and open userpref or startup .blend depending on what you want to get in the new version. Then save user prefs (Ctrl+Alt+U and save user prefs) and save the startup file (Ctrl+U)
Or alternatively copy these files into 2.78c\config, but I'm not sure if this will work