If you need to set certain values in your powershell profile then you can do with this simple how-to, first start powershell
Then type : notepad $profile
If you do not have a profile file you will be asked if you want to create one.
[system.net.webrequest]::defaultwebproxy = new-object system.net.webproxy('http://proxy.bears.cloud:3129')[system.net.webrequest]::defaultwebproxy.credentials = [System.Net.CredentialCache]::DefaultNetworkCredentials
[system.net.webrequest]::defaultwebproxy.BypassProxyOnLocal = $true[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12