Im running exchange 2013 with outlook 2010.. When we updated to exchange 2013 I did the import nk2 to bring users "autofill" in for outlook. I had a user call me today stating his auto fill is gone, outlook created a new one for him. I had him close out outlook then I restored all of his outlook files from the weekend back up to his profile trying to correct this but it didnt, he still had the same autofill entries (5) he started to build after the old list disappeared. What is the "nk2" file named in exchange 2013 and where is it stored? How can I get it back?