[Office2007] Configuration starts every time

Problem
Office 2007 worked well for me. Then, suddenly, it started to configure itself every time I wanted to open a document / presentation / etc. The process took minutes and it was very annoying.

Solution
I found the solution in this video. In short: locate the file “C:\Program Files (x86)\Common Files\microsoft shared\OFFICE12\Office Setup Controller\SETUP.EXE” and rename it to something else, for instance “SETUP_old.EXE“. The stupid configuration won’t appear again.