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I am an Outlook 2010 user with multiple email addresses (like 99% of people around here). 3 of my accounts are IMAP and one is Exchange.

I had Outlook set up with the two IMAPs and the Exchange, then wanted to add the other IMAP.

I followed the procedure but I have been unable to complete it due to an unknown error.

I also tried to delete the Exchange account and add it again. I did some tries, but now Outlook refuses to start: "Unable to open Outlook main window". Safe mode is of no help, compaibility mode only performs online crash report but no more result.

I tried to delete the Outlook directory in my user's AppData directory, but it seems it tries to re-create the .pst files that were originally in.

Please also note that I have a WinMo PDA in sync with Outlook. I would like to reset it to factory defaults. I don't care about emails deleted because all messages are on their respective servers.

What do you suggest me to do since removing AppData's subdirectory has no effect?

Thank you.

share|improve this question
Have you tried reinstalling? – tjameson Apr 5 '11 at 19:21
Maybe I don't currently have the DVD at hand ;) – usr-local-ΕΨΗΕΛΩΝ Apr 5 '11 at 19:50
up vote 1 down vote accepted

You can delete your profile and recreate it:

  • Go to control panel
  • Find Mail
  • Find and delete your profile (or create a new one and change the default to the new one)
  • Set everything back up
share|improve this answer
:) Great! It worked. It also has been explained on… – usr-local-ΕΨΗΕΛΩΝ Apr 5 '11 at 19:50
Glad I could help. I did this a lot at my tech support job. – tjameson Apr 5 '11 at 19:55

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