Microsoft Office may display an error message when installing or updating the Secure Exchanges connector in Outlook. In most cases, this problem is caused by a corrupted local cache used by Microsoft for installed applications.
Completely close Outlook and make sure it is no longer open in the taskbar.
Press the Windows + R keys simultaneously.
Copy and paste the following path into the window that appears, then click OK: %userprofile%\AppData\Local\Apps\2.0
Restart Outlook normally. The Secure Exchanges connector should now install or update correctly.
Our team is available to assist you. Write to us at support@secure-exchanges.com