Add Certificate SharePoint Trusted Root using PowerSHell

clear  
Remove-PSSnapin Microsoft.SharePoint.Powershell -ErrorAction SilentlyContinue  
Add-PSSnapin Microsoft.SharePoint.Powershell 

$invocation = (Get-Variable MyInvocation).Value
$currentfolder = Split-Path $invocation.MyCommand.Path
$SolutionPath=$currentfolder + "\STSPublicCert.cer"
New-SPTrustedRootAuthority -Name "STSTrustRenewed" -Certificate $SolutionPath