When launching MS Outlook from Windows 7, it goes into wait state and one can not access emails.
However, when I removed a strange program "Reliefjet for Outlook", the problem went away.
The text of the message is:
Outlook experienced a serious problem with the ‘norton antispam outlook plugin’ add-in. If you have seen this message multiple times, you should disable this add-in and check to see if an update is available. Do you want to disable this add-in?