You will need to update the corresponding setting in the desktop-config JSON file, see for example here: https://devblogs.microsoft.com/scripting/configuring_startup_settings_in_microsoft_teams_with_windows_powershell/
Start Teams in background for organisation
Duncan van Rooij
1
Reputation point
Teams automatically starting with a popup window is very inconvenient for our users. We would much rather have it start minimized.
How do I change the default option for "Start Teams in Background" to be enabled by default for our entire organisation?
Microsoft Teams | Microsoft Teams for business | Other
10,947 questions
2 answers
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Vasil Michev 119.7K Reputation points MVP Volunteer Moderator
2022-04-26T14:16:33.537+00:00 -
Pavel yannara Mirochnitchenko 13,336 Reputation points MVP
2023-06-22T07:53:39.03+00:00 No news about this? Poking json is crazy approach. I found out registery autorun have this line by default, can we change it to have the decired result. I want teams to start, but not on full window:
AppData\Local\Microsoft\Teams\Update.exe --processStart "Teams.exe" --process-start-args "--system-initiated"