alkavan · October 4, 2024 08:47 · Oct 4, 2024
diff --git a/windows-key-retrieval-script.ps1 b/windows-key-retrieval-script.ps1
@@ -0,0 +1,77 @@
+# Function to retrieve the product key from the registry
+function Get-WindowsKey {
+    try {
+        $path = 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform'
+        $key = (Get-ItemProperty -Path $path -Name BackupProductKeyDefault -ErrorAction Stop).BackupProductKeyDefault
+        return $key
+    } catch {
+        return $null
+    }
+}
+
+# Function to get the key using WMI
+function Get-WindowsKeyWMI {
+    try {
+        $key = (Get-WmiObject -query 'select * from SoftwareLicensingService').OA3xOriginalProductKey
+        return $key
+    } catch {
+        return $null
+    }
+}
+
+# Function to decode the binary key
+function ConvertTo-Key($Key) {
+    $keyOffset = 52
+    $isWin8 = [int]($Key[66] / 6) -band 1
+    $HexDigits = "BCDFGHJKMPQRTVWXY2346789"
+    $i = 24
+    [string]$result = ""
+
+    # Decoding the key
+    while ($i -ge 0) {
+        $r = 0
+        for ($j = 14; $j -ge 0; $j--) {
+            $r = ($r * 256) -bxor $Key[$j + $keyOffset]
+        }
+        for ($j = 24; $j -ge 0; $j -= 4) {
+            $result = $HexDigits[$r -band 0x0f] + $result
+            $r = $r -shr 4
+        }
+        $i--
+    }
+
+    if ($isWin8 -eq 1) {
+        $result = $result.Substring(1)
+        $result = $result.Insert(0, "N")
+    }
+
+    return $result.Insert(5, "-").Insert(11, "-").Insert(17, "-").Insert(23, "-")
+}
+
+# Main script
+$registryKey = Get-WindowsKey
+$wmiKey = Get-WindowsKeyWMI
+
+Write-Host "Attempting to retrieve Windows product key..."
+
+if ($registryKey) {
+    Write-Host "Product Key (from Registry): $registryKey"
+} elseif ($wmiKey) {
+    Write-Host "Product Key (from WMI): $wmiKey"
+} else {
+    Write-Host "Unable to retrieve product key using standard methods. Attempting advanced method..."
+    try {
+        $map = "BCDFGHJKMPQRTVWXY2346789"
+        $value = (Get-ItemProperty "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion").DigitalProductId[0x34..0x42]
+        $productKey = ConvertTo-Key $value
+        Write-Host "Product Key (Decoded): $productKey"
+    } catch {
+        Write-Host "Error: Unable to retrieve or decode product key."
+    }
+}
+
+# Display license information
+$license = Get-CimInstance -ClassName SoftwareLicensingProduct | Where-Object { $_.PartialProductKey } | Select-Object Description, LicenseStatus
+Write-Host "`nLicense Information:"
+Write-Host "Description: $($license.Description)"
+Write-Host "Status: $($license.LicenseStatus)"