Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi all,
This is my first Post so please have mercy.
I just had a costumer with the same issue.
Turns out Windows S Mode was active. (Check under Settings > System if your windows licence has a "S Mode" suffix)
You can disable this mode under Settings > Updates and Security > Activation
There you will also find the implications of this change.
Once I disabled S Mode i was able to install MS Teams and all worked fine.