I already tried several steps, such as uninstall and reinstall. I suspect I have a corrupted entry in my outlook exchange DB and CRM is crashing. Installing Dynamics Crm 2013 For Outlook' title='Installing Dynamics Crm 2013 For Outlook' />Once again it would be nice if I can totally desactivate any calendar syncronization, if I go in File CRM Options. I have desactivated the Appointment Syncronization, but apparently the outlook plugin still looks for recurring events. I didnt totally understand how to use Filters, this may be a good workaround.