Get back missing Photoshop from Adobe Bridge CS5.1

Today when I had finished post-processing some photos, I noticed that the Photoshop sub-menu had disappeared from the Tools menu. After searching the Interwebs and my computer, I found a solution.

Copy the folder C:\Program Files (x86)\Common Files\Adobe\Startup Scripts CS5\Adobe Photoshop to C:\Program Files (x86)\Common Files\Adobe\Startup Scripts CS5.5. Then restart Bridge. It should now tell you that there is a new Startup Script, which you want to enable. Good luck!