newbie said:
That's precisely why I started this thread.
I had renamed the backup file OutlookBak.pst.
Copied it to the default location.
Renamed Outlook.pst to OutlookOld.pst.
Renamed OutlookBak.pst to Outlook.pst.
Closed Outlook.
Launched Outlook and got dups and no addresses in the address book.
By doing all that renaming you very likely corrupted the mail profile.
In Control Pane-Mail, create a new Profile.
Then, if you still have access to the original backup file, copy it to your
HDD, (My Documents is a good place) then open the new Outlook profile and do
File-Open-Outlook Data File.
You then have two choices - either copy the data from the backup pst file to
the new pst file, or set the backup file as your default delivery location,
again via control panel-Mail.
None of this would have been necessary if you'd done even a modicum of
research - the correct method of transferring data from one Outlook to
another is posted in the Outlook groups on a daily basis......