Office 2016 Mail Applet doesnt open on my Windows 10 64 bit machine - Windows host process Rundll32 has stopped working So i updated my office 2013 via office 365 portal, to office 2016. Now i cant get emails through, every time i enter my password it doesnt connect. I have re-installed Office 2016 and then i tried opening up the 2016 Mail Applet to create a new profile in Control Panel and this doesnt even open. I get "Windows host process rundll32 has stopped working" I Tried a different profile, still get the same error. Looked on Microsoft forums and they have nothing.... Any one else had this issue?