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Importing the nk2-file in Outlook 2010

When you upgrade to Outlook 2010, the nk2-file is automatically imported upon starting Outlook 2010 for the first time. When you create a new Outlook mail profile or when using Outlook on a new computer, you can import an existing nk2-file in the following way;

Copy the nk2-file to the following folder;
Windows Vista and Windows 7
C:\Users\%username%\AppData\Roaming\Microsoft\Outlook
Windows XP
C:\Documents and Settings\%username%\Application Settings\Microsoft\Outlook
Rename the nk2-file to the name of your mail profile.
To find out this name use the Mail applet in Control Panel and click on the Show Profiles… button.
By default, your profile is called “Outlook”. So in that case you would call your file “outlook.nk2”.
Start Outlook with the /importnk2 switch;
Windows Vista and Windows 7
Start-> type; outlook.exe /importnk2
Windows XP
Start-> Run; outlook.exe /importnk2
Outlook will now process the nk2-file and import it into the Suggested Contacts folder. Outlook will automatically append .old to the nk2-file. So in our example it will now be called; outlook.nk2.old