I have 2003 outlook and am upgrading to 2010. Haven't loaded it yet but what do I do about existing files and messages on my 2003 Outlook

Not open for further replies.


Haven't loaded new 2010 office but concerned about 2003 outlook files and messages.

Gordon B-P

You don't need to DO anything as 2010 should pick it all up. However it would be prudent to make a backup copy of your pst file(s) anyway...

Russ Valentine

A word of caution however if you are attempting to do an in place upgrade of Outlook. It is best to install Outlook clean as it has great diffuculty with any upgrades scenarios. After a clean install, you must still create a new Outlook profile from scratch and migrate your data file to that profile correctly. That's why having a good backup of your data file is so important. The file you need is your Personal Folders file (*.pst) It's where all the mail, calendar, contacts etc are stored.

Take a look at these pages for info on Outlook data backup or transfer:
Moving Outlook to a New Computer

Note that some of the information on the Microsoft page is outdated and contains errors, particularly when applied to Outlook 2003, 2007 or 2010. Specifically:
1. Ignore any advice to copy your PST file to Outlook's default location to connect it to your profile. Doing so will often corrupt your Outlook profile. Copy it anywhere BUT the default location and then open it within your Outlook profile.
2. Ignore any advice that tells you to use export or import to transfer an entire Outlook data file. That has never been sound advice, but the process has become too deeply flawed to be trusted.

Also, when you use manual configuration for your mail accounts in Outlook 2010 (always preferable) it has a nice new option that lets you connect to a pre-existing data file when creating a new profile instead of having to jump through all the hoops of creating a new file, connecting to the pre-existing file, then disconnecting the new file.

Russ Valentine
Not open for further replies.