https://chocolatey.org/install it is just working ...
Open Powershell as Admin
Check current Execution Policy restriction
Get-ExecutionPolicy
if “Restricted” -> Set-ExecutionPolicy AllSigned
If "All Signed" -> Do nothing
Install Chocolatey:
Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; iex ((New-Object System.Net.WebClient).DownloadString('https://community.chocolatey.org/install.ps1'))
choco.exe install microsoft-teams.install -y
choco install bitwarden-cli -y