For those experiencing issues with PowerShell, you can execute the following commands: PS C:\> [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 -bor [Net.SecurityProtocolType]::Tls11 -bor [Net.SecurityProtocolType]::Tls PS C:\> Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force PS C:\> Set-PSRepository -Name 'PSGallery' -InstallationPolicy Trusted PS C:\> . ./PassTester.ps1