1. Fully uninstall CRM Outlook client
2. Repair your Outlook
3. Install CRM Outlook client again.
==How to fully uninstall CRM Outlook client==
- Removed CRM form the Program and Features.
- Delete Microsoft Dynamics CRM folder from C:\program files.
- Deleted MSCRM folder from C:\Users\Your username\AppData\local\Microsoft\MSCRM
- Performed similar step for C:\Users\Your username\AppData\local\Microsoft\MSCRM and deleted MSCRM folder if it exist.
- Go to Run, type in regedit and press enter.
- Click on HKEY_CURRENT_USER>>Software>>Microsoft>>MSCRM. Delete all MSCRM related folder.
- Click on HKEY_LOCAL_MACHINE>>Software>>Microsoft>>MSCRM. Delete all MSCRM related folder.
- Click on HKEY_USER>>Software>>Microsoft>>MSCRM. Delete all MSCRM related folder.