GpoBackupImport.ps1

function Get-GpoBackupName {
	[CmdletBinding()]
	param (
		[Parameter(ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)]
		[Alias('FullName')]
		[string]
		$Path
	)
	process {
		foreach ($folder in $Path) {
			$datafile = Join-Path $Path 'Backup.xml'
			[xml]$xml = Get-Content $datafile
			$xml.GroupPolicyBackupScheme.GroupPolicyObject.GroupPolicyCoreSettings.DisplayName.'#cdata-section'
		}
	}
}

function Restore-GpoExtended {
	[Cmdletbinding()]
	Param (
		[string]
		$Path = '.'
	)

	$resolvedPath = Resolve-Path $Path
	$allGpos = Get-Gpo -All

	$names = Get-ChildItem -Path $resolvedPath | Get-GpoBackupName
	foreach ($name in $names) {
		if ($allGpos.DisplayName -notcontains $name) { $Null = New-Gpo -Name $name }
		Import-Gpo -Path $resolvedPath -BackupGpoName $name -TargetName $name
	}
}