[system.net.webrequest]::defaultwebproxy = new-object system.net.webproxy($proxy)
[system.net.webrequest]::defaultwebproxy.credentials = $cred
[system.net.webrequest]::defaultwebproxy.BypassProxyOnLocal = $true
Register-PSRepository -Default
Get-PSRepository
Name InstallationPolicy SourceLocation
---- ------------------ --------------
PSGallery Untrusted https://www.powershellgallery.com/api/v2
Install-Module sqlserver -Proxy $proxy -ProxyCredential $cred