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Disable auto start or enable auto-sign in
Hi! I'm installing Office 365 ProPlus (with Teams) on computers in our environment. Is there any way to prevent the log-in screen that pops up for Microsoft Teams on a fresh computer? I'd pr...
- Hi mrkesu,
You can 100% prevent auto start via a GPO, amending the JSON on the users machine or going into the Teams client options and doing it user per user
https://techcommunity.microsoft.com/t5/Microsoft-Teams/How-to-Prevent-Teams-from-Auto-Launch/m-p/780817#M35866
Can also do it via Registry
https://blog.valeconsulting.co.uk/2018/08/08/microsoft-teams-prevent-automatic-startup/
As for Auto Sign In, it looks like SSO with Azure AD is the way to go
https://techcommunity.microsoft.com/t5/Microsoft-Teams/Teams-Single-sign-on-Automatic-login-Pass-through-auth/m-p/37975
A third party identity tool may also do this however after logging in initially Teams does persist with that login so I would consider whether this is worth the time investment. I know that you are looking for the cleanest UX for your users here.
Hope that answers your question!
Best, Chris
Hi mrkesu,
You can 100% prevent auto start via a GPO, amending the JSON on the users machine or going into the Teams client options and doing it user per user
https://techcommunity.microsoft.com/t5/Microsoft-Teams/How-to-Prevent-Teams-from-Auto-Launch/m-p/780817#M35866
Can also do it via Registry
https://blog.valeconsulting.co.uk/2018/08/08/microsoft-teams-prevent-automatic-startup/
As for Auto Sign In, it looks like SSO with Azure AD is the way to go
https://techcommunity.microsoft.com/t5/Microsoft-Teams/Teams-Single-sign-on-Automatic-login-Pass-through-auth/m-p/37975
A third party identity tool may also do this however after logging in initially Teams does persist with that login so I would consider whether this is worth the time investment. I know that you are looking for the cleanest UX for your users here.
Hope that answers your question!
Best, Chris
You can 100% prevent auto start via a GPO, amending the JSON on the users machine or going into the Teams client options and doing it user per user
https://techcommunity.microsoft.com/t5/Microsoft-Teams/How-to-Prevent-Teams-from-Auto-Launch/m-p/780817#M35866
Can also do it via Registry
https://blog.valeconsulting.co.uk/2018/08/08/microsoft-teams-prevent-automatic-startup/
As for Auto Sign In, it looks like SSO with Azure AD is the way to go
https://techcommunity.microsoft.com/t5/Microsoft-Teams/Teams-Single-sign-on-Automatic-login-Pass-through-auth/m-p/37975
A third party identity tool may also do this however after logging in initially Teams does persist with that login so I would consider whether this is worth the time investment. I know that you are looking for the cleanest UX for your users here.
Hope that answers your question!
Best, Chris
I have no idea how I missed that registry key in my searches, thank you! 
Tested and works exactly as advertised! Also when the user open Teams at some point of their own free will then it reverts to default "automatically start on sign in", perfect.
For others wondering;
https://docs.microsoft.com/en-us/deployoffice/teams-install#use-group-policy-to-prevent-microsoft-teams-from-starting-automatically-after-installation
...you can add the PreventFirstLaunchAfterInstall value to the HKEY_CURRENT_USER\SOFTWARE\Policies\Microsoft\Office\16.0\Teams key in the registry. The type for PreventFirstLaunchAfterInstall is REG_DWORD and the value should be set to 1 if you don't want Teams to automatically start after installation.