Blocked by software restriction policies

From https://github.com/microsoft/vscode-azurearmtools/issues/331

> Action: acquireDotnet
> Error type: string
> Error Message: & : File C:\Users\guestuser\.vscode\extensions\msazurermtools.azurerm-vscode-tools-0.7.0\assets\install scripts\dotnet-i
nstall.ps1 cannot be loaded because its operation is blocked by software restriction policies, such as those created by
> using Group Policy.
> At line:1 char:128
> + ... ture = '';& 'C:\Users\guestuser\.vscode\extensions\msazurermtools.azur ...
> + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> + CategoryInfo : SecurityError: (:) [], PSSecurityException
> + FullyQualifiedErrorId : UnauthorizedAccess
>
> Version: 0.7.0
> OS: win32
> Product: Visual Studio Code
> Product Version: 1.36.1
> Language: en

I asked if they could install directly via https://dot.net/v1/dotnet-install.ps1 but haven't received a response.