Create new Microsoft Team using PowerShell

Open Power Shell as an Administrator

Go to Start
Search for Power Shell
Right click on Windows Power Shell
Run as Administrator

Run the following commands

Install-Module MicrosoftTeams 

(Need to configure this setting only once on your computer)
-Press “A” or “Y”
–Press Enter

Import-Module MicrosoftTeams 

Connect-MicrosoftTeams -Credential $credentials

To create the new Team

Visibility Private / Public

New-Team -DisplayName “New Team's Display name” -Visibility Private

To get a list of all the Teams

Get-Team