PowerShell Script for Group Policy backup

This script allows you to create a task to reserve group policies of your Active Directory domain in case of changes or their accidental removal:

$Path = "D:\GP_Backup\"
$Days = "30"
$date = Get-Date -format yyyyMMdd
New-Item -Path $Path\$date -ItemType "directory"
Backup-GPO -All -Path $Path\$date
&$env:ProgramFiles\WinRar\rar a -r $Path\$date $Path\$date
Remove-Item $Path\$date -Recurse -Force
$Now = Get-Date
$LastWrite = $Now.AddDays(-$Days)
$Files = Get-Childitem $Path -Recurse | Where {$_.LastWriteTime -le "$LastWrite"}
Foreach ($File in $Files)
    {
    If ($File -ne $NULL)
        {
        Remove-Item $File.FullName | Out-Null
        }
    }

where  $Path - the directory for storing backups;
           $Days - all copies created earlier than this number of days ago will be deleted.

Each time the script is triggered, a backup copy of group policies will be created in the target folder with "yyyymmdd" format. Archiving is done by an external program WinRar, that must be installed in advance.