How to do a clean uninstallation of Microsoft Teams

Question

Hi all,&nbsp;After I uninstalled Microsoft Teams from my laptop on 17/9/2020, there seems to be some residual files leftover and the Squirrel Telemetry log keeps logging these uninstall entries every single time I start up my computer - is there something wrong with the uninstallation?&nbsp;This doesn't seem to be normal behaviour, thus would like to solicit the expertise of the Microsoft employees and tech contributors. Why is this happening?&nbsp;On a side note, after uninstallation of Teams somehow when I click the update.exe file, the squirrel update still seems to run? Would anyone happen to know why is this update.exe still in my laptop when I’ve uninstalled the app (with logs being updated in SquirrelTelemetry and SquirrelSetUp) – does this mean Teams is still somehow on my laptop, because I still have the Windows Installer Package for Teams?&nbsp;Previously I had already uninstalled both the Teams Machine-Wide Installer, as well as the Teams app itself, but these folders still remain on my laptop - does this mean that it was not a clean uninstallation? How can I make sure that Teams is completely uninstalled?&nbsp;I would really appreciate any insights on this issue as I haven't found a lot of useful information on the web. Thanks in advance for taking time to read through!&nbsp;

christianbergstrom · Answer

jwang037&nbsp;Hi, you can clear Teams related objects at several places (windows/registry) but the links should provide answers to your questions.&nbsp;'The Windows client is deployed to the AppData folder located in the user’s profile'https://docs.microsoft.com/en-us/microsoftteams/get-clients#windows&nbsp;'How the Microsoft Teams MSI package works'https://docs.microsoft.com/en-us/microsoftteams/msi-deployment#how-the-microsoft-teams-msi-package-works&nbsp;&nbsp;'Clean up and redeployment procedure'https://docs.microsoft.com/en-us/microsoftteams/msi-deployment#clean-up-and-redeployment-procedure&nbsp;&nbsp;&nbsp;

jwang037 · Answer

ChristianBergstrom&nbsp;Hi Christian,&nbsp;Thanks for the information. Would you then happen to know why&nbsp;there seems to be some residual files leftover after the uninstallation and the Squirrel Telemetry log keeps logging these uninstall entries every single time I start up my computer? This doesn't seem to be normal behaviour, thus would like to solicit the expertise of the Microsoft employees and tech contributors. Why is Teams still logging such behaviour when I have already uninstalled it?&nbsp;Thank you!

christianbergstrom · Answer

jwang037&nbsp;Hello again, well to start with you need to uninstall both Microsoft Teams and the Teams Machine-Wide Installer. I really don't understand the problem (sorry) but if you would like to completely wipe everything with an association with Teams you have to do manual deletion of objects. I suggest you open up a support ticket with the official support if you have further questions. If you can't do that have your IT administrator do it for you.

asheroto · Answer

https://github.com/asheroto/UninstallTeams/releases

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How to do a clean uninstallation of Microsoft Teams

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