Hi @barton, matthew
Starting in late August 2023, new Teams will automatically install with new and existing installations of Microsoft 365 Apps on Windows.
Currently, users can install the new Microsoft Teams using the "Try the new Teams" toggle switch in classic Teams or by Admins bulk upgrading directly to the computers in their organization.
Administrators may exclude new Teams from automatically installing with Microsoft 365 Apps on Windows.
Admins who don't want new Teams included with Microsoft 365 Apps on devices running Windows can follow these steps to opt out.
- Sign in to the Microsoft 365 Apps admin center (https://config.office.com) with an admin account.
- Go to Customization > Device Configuration > Modern Apps Settings.
- Select Microsoft Teams (work or school), then clear the Enable automatic installation of new Microsoft Teams check box.
For the best Teams experience, we recommend leaving the setting as is.
If you've set Teams update policy to Not enabled, but users still received new Teams client with M365 Apps, please follow instructions in our How to uninstall the new Teams client article to uninstall it for your users.
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