When I try and open a .tex file on emacs 25.1 under Windows I now get this error:
File mode specification error: (dbus-error No connection to bus :session)
And cannot typeset anything using the usual
C-c C-c command.
I think it may be something to with trying to load auctex because if I start emacs with -Q and open a tex file it opens OK.
Does anyone have a clue how to fix that? It works fine on emacs 24.5.1