Repopulate the autocomplete emails in a new Outlook profile or installation

 In the old days, the nk2 file was the go to file to get things working again when the old one was no more due to a new Outlook profile  or a new PC..

Later, it was the Autocomplete List cache stored in the hidden folder somewhere in your users' profile folder structure. This was easy enough to copy over to the new user's autocomplete - overwriting the new empty file but using the new filename. (Outlook needs to be closed while you do this)

This list is limited to 1000 by the way, so another reason not to go relying on it to remember all your customers' email address!

However, if you are using Google's sync tool, this appears not to apply!

So to get around this, the trick is to export the contacts t a PST, then import them to the new profile.

That, however does NOT restore the autocomplete that the user is expecting.

The trick is to simply compose  new email, and populate the to or cc or bcc filed with AL the contacts and let it resolve. But you DON'T need to send it, jus cancel out and delete this draft.

From now on the autocomplete will know all the "new" addresses, so the user can carry on as they were addressing emails by typing just the first letter or two, and getting the autocomplete suggestions they were expecting.

In a new email, select ALL (Click and drag down to the bottom)

Let the addresses Resolve, Escape out without sending or saving

Job done!