Outlook 2016 nk2 file not updating
I have exported all the data (emails, calendar, contacts etc.) from one Outlook PST file into a new PST file, and am now using this new file instead.
In Microsoft Outlook 2010, the Auto-Complete List is no longer saved in a file with an extension of .nk2.Solution that worked for me was pressing "ctrl -" while in inbox and changing size to 90%. The Auto-Complete List is a feature that displays suggestions for names and email addresses as you begin to type them.Microsoft Outlook keeps a list of recently used email addresses that you've typed in the To:, Cc:, and Bcc: fields.You can back up or copy that file elsewhere if you want to keep the list or use it on a different computer.