Hi @Dagnese, Umberto
You may Turn off the Recording tab, this policy setting under
User Configuration\Administrative Templates\Microsoft PowerPoint 2016\Disable Items in User Interface\Predefined
.
Please refer to: https://support.microsoft.com/en-us/office/administrator-settings-for-the-recording-features-in-powerpoint-16d1d535-2f07-4a04-ace2-a8eff89c079c
But please note, this action does not turn off microphone when recording.
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