Hi, All above fixes works and it is fine when we have to address individual user. But in corporate environment for every Teams update there are around 200 to 300 users report on this add-in issue which is really annoying. Microsoft should give serious thought process to this. I believe this because of the version number folder of the add-in gets updated every Teams update. When Outlook is open the folder gets messed. Though the Teams retains these folders based on the logs, sometimes it gets messed up. We cant expect users to maintain a correct order of closing or opening of Outlook and teams. The dependency of this should be removed. Until then the issue will persist. Let the version numbers be maintained in logs and atleast think of folder name as "Current Addin" and "Previous Addin" so that the entire path remains same for any N number of updates. And the registered application will be retaining the same path. And it does not need to register everytime. C:\Users\Userprofile\AppData\Local\Microsoft\TeamsMeetingAddin\VersionNumber\x86