Transfer Outlook AutoComplete NK2 File to Outlook 2016, 2013, and 2010

There are times when you have to move Outlook AutoComplete NK2 files to a higher Outlook version, for instance to Outlook 2016, Outlook 2013, or Outlook 2010. This is done by the Outlook built-in command – ‘outlook.exe /importnk2’.  So when you are transferring Outlook 2016, 2013, or 2010 AutoComplete file to a new profile or a new computer, then copy paste stream_autocomplete*.dat file to the proper folder path.

So first let’s see how to import and merge Outlook AutoComplete NK2 file to Outlook 2016, 2013, and 2010 from earlier Outlook versions to a new profile or computer:

1. See to it that NK2 file is in this folder: %appdata%\Microsoft\Outlook

Important: NK2 file should have the same name as your current Outlook 2016 or Outlook 2013 profile. The profile name is Outlook by default. To check the profile name, do this:

1. • Go to Start - Control Panel
   • Double-click Mail
   • In the Mail Setup dialog box, click Show Profiles option. You can see your profile’s name.
2. Now bring up the Run console, type ‘outlook.exe /importnk2‘, and then click OK

The .nk2 file will be imported into the Outlook profile.

Next, let’s see how to import and merge AutoComplete stream_autocomplete_*.dat file into Outlook 2016, 2013, or 2010 from earlier Outlook versions to a new computer/profile:

If you want to import an existing Outlook AutoComplete stream_autocomplete_*.dat file to a new or existing computer, you can use NK2 edit tool.

So if you are under a situation where you have to move Outlook to a new computer, or a higher Outlook version, then you can make use of this Outlook backup tool to move Outlook data safely. Also, if you want to move PST file to a particular Windows version, for instance, you have to import PST file to Outlook 2016, then also the tool comes handy to transfer entire PST file efficiently. In just a few simple steps this application will backup entire PST file along with the attributes and settings.