$flagFolder = "C:\ProgramData\PrinterHKeyClean" 
$flagFile = "${flagFolder}\v1.flag"

if (!(Test-Path $flagFolder)) {
    New-Item -Path $flagFolder -ItemType Directory -Force | Out-Null
}

if (Test-Path $flagFile) {
    Write-Host "Script has already run. Exiting." --ForegroundColor Red
    exit
}

$profileListKey = 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList'

$sids = Get-ChildItem $profileListKey

$HKUsersPrinterPaths = @(
    '\Printers\Connections',
    '\Printers\ConvertUserDevModesCount',
    '\Software\Xerox\PrinterDriver',
    '\Software\Microsoft\Windows NT\CurrentVersion\Devices'
)

$HKLMPrinterPaths = @(
    'HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Print\Providers',
    'HKEY_LOCAL_MACHINE\SOFTWARE\Xerox\PrinterDriver'
)

Write-Host "Stopping spooler" --ForegroundColor Yellow
net stop spooler

foreach ($HKLMPrinterPaths in $HKLMPrinterPaths) {
    try {
        Remove-Item -Path "Registry::${HKLMPrinterPaths}" -Recurse -Force -ErrorAction Stop
        Write-Host "Removed local machine key ${HKLMPrinterPaths}" --ForegroundColor Green
    } catch {
        Write-Host "Error: $($_.Exception.Message)"
    }
}

foreach ($sid in $sids) {
    $sid = $sid.PSChildName
    $profilePath = (Get-ItemProperty -Path $sid.PSPath -Name ProfileImagePath).ProfileImagePath
    
    foreach ($HKUsersPrinterPath in $HKUsersPrinterPaths) {
        try {
            Remove-Item -Path "Registry::HKEY_USERS\${sid}${HKUsersPrinterPath}" -Recurse -Force -ErrorAction Stop
            Write-Host "Removed user profile key HKEY_USERS\${sid}${HKUsersPrinterPath}" --ForegroundColor Green
        } catch {
            Write-Host "Error: $($_.Exception.Message)"
        }
    }
}

try {
    Remove-Item -Path "C:\Windows\System32\spool\PRINTERS" -Recurse -Force
    Write-Host "Removed PRINTERS from spooler" --ForegroundColor Green
} catch {
    Write-Host "Error Removing PRINTERS from spooler" --ForegroundColor Red
    Write-Host "Error: $($_.Exception.Message)"
}

try {
    Remove-Item -Path "C:\Windows\System32\spool\V4Dirs" -Recurse -Force
    Write-Host "Removed V4Dirs from spooler" --ForegroundColor Green
} catch {
    Write-Host "Error Removing V4Dirs from spooler" --ForegroundColor Red
    Write-Host "Error: $($_.Exception.Message)"
}

Write-Host "Starting spooler" --ForegroundColor Yellow
net start spooler


Write-Host "Running gpupdate" --ForegroundColor Yellow
gpupdate /force

try {
    New-Item -Path $flagFile -ItemType File -Force
    Write-Host "created flag at ${flagFile}" --ForegroundColor Green
} catch {
    Write-Host "Could not create flag at ${flagFile}" --ForegroundColor Red
    Write-Host "Error: $($_.Exception.Message)"
}