Automatically clean up orphaned user directories

We've had a huge problem where users were removed from Active Directory, but somehow the administrators neglected to remove the home folder for the user from the file servers. This left someone with the nasty task of cleaning up the mess.

This script will work through a directory of home folders and lookup the user in AD. This is assuming that the home folder and the user id are the same. If the user is not found, or the account is disabled, the folder will be renamed with a leading "orphan-" followed by the original name. The script requires a parameter, which is the path where the folders are located. e.g. "findorphans.ps1 c:\users" The script requires that the Quest Powershell Commandlets are installed, and they can be downloaded free, here.

param($target)
$folders=Get-ChildItem -Path $target | Where-Object {$_.Name -notlike "orphan*" -and ($_.PSISContainer)} | Select-Object name
foreach ($folder in $folders){
Write-Host ""
$userid=""
"PROCESSING FOLDER: {0} "   -f $folder.name
write-host "Searching for a possible owner..."
$user=Get-QADUser $folder.name
$useracc=$user.AccountIsDisabled
$userid=$user.samaccountname
$newid="orphan-" + $folder.name
$fullpath=$target + "\" + $folder.name
$fullpath
"Account Disabled: {0} "   -f $user.AccountIsDisabled

if ($userid.length -lt "0" -or $user.AccountIsDisabled -eq "True") {
Write-Host "No owner found or account disabled, orphan folder renamed to" $newid -ForegroundColor Red
rename-Item -Path $fullpath -NewName $newid
}
else {
Write-Host "Owner found" $user -ForegroundColor Green
}
}