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This will cause Teams to uninstall the next time the user signs in. %LOCALAPPDATA%\Microsoft\Teams\Update.exe -uninstall -msiUninstall If a user uninstalls the Teams Machine-Wide Installer, then the install Run key is removed, and a new uninstall Run key is created: TeamsMachineUninstallerLocalAppData REG_EXPAND_SZ While this key is present, Teams won't install itself again from the Machine-Wide Installer. HKEY_CURRENT_USER\Software\Microsoft\Office\Teams\PreventInstallationFromMsi If a user that had Teams installed via an MSI uninstalls it, a registry key is created: VDI installationįor complete guidance on how to deploy the Teams desktop app on VDI, see Teams for Virtualized Desktop Infrastructure. Make sure the computers you install Teams on meeting the requirements listed in Hardware requirements for Microsoft Teams. Having too old a version will eventually block users fromĪccessing the service.

We don't recommended that you change the default install locations as this could break the update flow. If a very old version gets deployed, the MSI will trigger an app update before the user is able to use Teams. If you deploy an older version of the MSI file, the client will auto-update (except in VDI environments) when possible for the user.

To re-deploy the latest installer, use the process of redeploying MSI described below. The Teams client will auto-update when it detects a new version is available from the service. MSI files can't be used to deploy updates.

If a user already has the Teams app installed in the %LocalAppData%\Microsoft\Teams folder, the MSI installer skips the process for that user. Whenever a user signs into a new Windows user profile, the installer is launched and a copy of the Teams app is installed in that user's %LocalAppData%\Microsoft\Teams folder. The Teams MSI places an installer in %SystemDrive%\Program Files\Teams Installer on 32-bit Windows and %SystemDrive%\Program Files (x86)\Teams Installer on 64-bit Windows. How the Microsoft Teams MSI file works PC installation If you try to install the 64-bit version of Teams on a 32-bit operating system, the installation won't be successful and you won't receive an error message. Install the 64-bit version of Teams only on 64-bit operating systems.