https://github.com/dahlbyk/posh-git

Install-PackageProvider -Name NuGet -Force
Install-Module PowerShellGet -Scope CurrentUser -Force -AllowClobber
Install-Module posh-git -Scope CurrentUser -AllowPrerelease -Force
Add-PoshGitToProfile -AllHost

Execution Policy error, run this in powershell

Set-ExecutionPolicy RemoteSigned -Scope CurrentUser -Confirm