1. If after re-installation of CRM 2011 Outlook client you start getting errors – Invalid Argument (like this one below):
Error| Exception : Value cannot be null.
Parameter name: uriString at System.Uri..ctor(String uriString)
2. And your CRM Wizard says it wants to remove CRM Organization (when you already cleaned traces everywhere)
A great possibility – that there is some data stored that inside the Outlook.
Check the Outlook Address books – you may find CRM Address Book still intact.
Just delete – it and “cleaning” procedure wouldn’t start again.
CRM 2011 Outlook. Invalid Argument Solution
Hope this will save your time