Hi,

I'm not sure what the backup it was, a backup of the registry?

Would you please provide more details about how you re-configured these accounts back to Outlook? Did you just add the account manually in Outlook?

Try to create a new Outlook profile, add the Exchange Account to try again, does the issue persist?

Regards,

Melon Chen
TechNet Community Su

I recently had to restore my account settings for Outlook 2010 following a reinstallation of Office.  I had taken a backup of what I though was all the registry stuff I needed and when I reinstalled the settings I thought it worked.  I have 4 IMAP accounts and one exchange account.  The IMAPs all work fine but the exchange doesn't.  

I've tried repairing the account but get the error "The action cannot be completed.  The connection to microsoft exchange is unavailable.  Outlook must be online or connected to complete this action".

I think it is a registry thing as I don't have any trouble with the webmail service and can check the same account on my phone.

Any ideas?