Windows 10 Login

$priPath = "$env:windir\SystemResources\Windows.UI.Logon\Windows.UI.Logon.pri" # Ne diraj
$outputPath = "C:\Users\USERNAME\Desktop\Windows.UI.Logon.pri" # Zamijeni USERNAME sa svojim
$replacementPath = "c:\logon.jpg" # Path do slike koju zelite da vam prikazuje
$blobToReplace = 5 # Rezolucija najbliza vasoj
# 768x1366       0
# 1600x2560      1
# 1200x1920      2
# 1366x768       3
# 3840x2160      4
# 1920x1200      5
# 1024x768       6
# 2160x3840      7
# 768x1024       8
# 2560x1600      9

# OSTALI DIO KODA NE DIRAJ
$inputStream = [System.IO.File]::OpenRead($priPath)
$outputStream = [System.IO.File]::Create($outputPath)
$replacementStream = [System.IO.File]::OpenRead($replacementPath)

$inputReader = New-Object System.IO.BinaryReader -ArgumentList $inputStream
$outputWriter = New-Object System.IO.BinaryWriter -ArgumentList $outputStream

$inputStream.CopyTo($outputStream)

$replacementLengthAligned = ([Math]::Ceiling($replacementStream.Length / 8) * 8)
$dataitemLength = 0x20ACF0 + $replacementLengthAligned

$outputStream.Seek(0xBC, "Begin") | Out-Null
$outputWriter.Write([int]$dataitemLength)
$outputStream.Seek(0x1598, "Begin") | Out-Null
$outputWriter.Write([int]$dataitemLength)

$outputStream.Seek(0x15A8, "Begin") | Out-Null
$outputWriter.Write([int](0x20AC10 + $replacementLengthAligned))

$outputStream.Seek(0x15E0 + $blobToReplace * 8, "Begin") | Out-Null
$outputWriter.Write(0x20AC10)
$outputWriter.Write([int]$replacementStream.Length)

$outputStream.Seek(0x20C268, "Begin") | Out-Null
$replacementStream.CopyTo($outputStream)
$outputStream.Seek($replacementLengthAligned - $replacementStream.Length, "Current") | Out-Null
$outputWriter.Write(0xDEF5FADE)
$outputWriter.Write([int]$dataitemLength)
$outputWriter.Write(0xDEFFFADE)
$outputWriter.Write(0x00000000)
$outputWriter.Write([char[]]"mrm_pri2")

$outputStream.Seek(0xC, "Begin") | Out-Null
$outputWriter.Write([int]$outputStream.Length)
$outputStream.Seek(-0xC, "End") | Out-Null
$outputWriter.Write([int]$outputStream.Length)

$inputReader.Close()
$outputWriter.Close()
$replacementStream.Close()

# KRAJ / THE END