Created
April 7, 2017 14:43
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## function to retrieve the Windows Product Key from any PC | |
## by Jakob Bindslet (jakob@bindslet.dk) | |
function Get-WindowsKey { | |
param ($targets = ".") | |
$hklm = 2147483650 | |
$regPath = "Software\Microsoft\Windows NT\CurrentVersion" | |
$regValue = "DigitalProductId" | |
Foreach ($target in $targets) { | |
$productKey = $null | |
$win32os = $null | |
$wmi = [WMIClass]"\\$target\root\default:stdRegProv" | |
$data = $wmi.GetBinaryValue($hklm,$regPath,$regValue) | |
$binArray = ($data.uValue)[52..66] | |
$charsArray = "B","C","D","F","G","H","J","K","M","P","Q","R","T","V","W","X","Y","2","3","4","6","7","8","9" | |
## decrypt base24 encoded binary data | |
For ($i = 24; $i -ge 0; $i--) { | |
$k = 0 | |
For ($j = 14; $j -ge 0; $j--) { | |
$k = $k * 256 -bxor $binArray[$j] | |
$binArray[$j] = [math]::truncate($k / 24) | |
$k = $k % 24 | |
} | |
$productKey = $charsArray[$k] + $productKey | |
If (($i % 5 -eq 0) -and ($i -ne 0)) { | |
$productKey = "-" + $productKey | |
} | |
} | |
$win32os = Get-WmiObject Win32_OperatingSystem -computer $target | |
$obj = New-Object Object | |
$obj | Add-Member Noteproperty Computer -value $target | |
$obj | Add-Member Noteproperty Caption -value $win32os.Caption | |
$obj | Add-Member Noteproperty CSDVersion -value $win32os.CSDVersion | |
$obj | Add-Member Noteproperty OSArch -value $win32os.OSArchitecture | |
$obj | Add-Member Noteproperty BuildNumber -value $win32os.BuildNumber | |
$obj | Add-Member Noteproperty RegisteredTo -value $win32os.RegisteredUser | |
$obj | Add-Member Noteproperty ProductID -value $win32os.SerialNumber | |
$obj | Add-Member Noteproperty ProductKey -value $productkey | |
$obj | |
} | |
} | |
Get-WindowsKey | Write-Output |
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