title: Excel 2013 disable Multi-threaded calculation in registry
body: <p>I have now searched for how I can disable Multi-threaded calculation in the  registry i think it´s in HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Excel\Options but dont know what to create to disabel it</p>
  
  <p>I tried:
  DWORD: DisabelMultiThreadedCalculation
  Value: 1 and 0</p>
  
  <p>Anyone got an Idea?</p>