Add new Parameter for Installing Preview CU from

Mircosoft Update Catalog. Recent Windows Pro
not Auto Activating to Enterprise License Bug speared
this idea as its resoleve in lastes Prieview CU.

Parameter is default $False but if set to $true will install
Preivew CU and take precendence over $UpdateLastestCU.

FFUDevelopment/BuildFFUVM.ps1

@@ -106,6 +106,9 @@ When set to $true, will remove the FFU file from the $FFUDevelopmentPath\FFU fol
 .PARAMETER UpdateLatestCU
 When set to $true, will download and install the latest cumulative update for Windows 10/11. Default is $false.
 
+.PARAMETER UpdatePreviewCU
+When set to $true, will download and install the latest Preview cumulative update for Windows 10/11. Default is $false.
+
 .PARAMETER UpdateLatestNet
 When set to $true, will download and install the latest .NET Framework for Windows 10/11. Default is $false.
 
@@ -304,6 +307,7 @@ param(
     [bool]$CopyPEDrivers,
     [bool]$RemoveFFU,
     [bool]$UpdateLatestCU,
+    [bool]$UpdatePreviewCU,
     [bool]$UpdateLatestNet,
     [bool]$UpdateLatestDefender,
     [bool]$UpdateEdge,
@@ -3749,10 +3753,10 @@ try {
 
     Add-BootFiles -OsPartitionDriveLetter $osPartitionDriveLetter -SystemPartitionDriveLetter $systemPartitionDriveLetter[1]
 
-    #Update latest Cumulative Update
+    #Update latest Cumulative Update if both $UpdateLatestCU is $true and $UpdatePreviewCU is $false
     #Changed to use MU Catalog instead of using Get-LatestWindowsKB
     #The Windows release info page is updated later than the MU Catalog
-    if ($UpdateLatestCU) {
+    if ($UpdateLatestCU -and -not $UpdatePreviewCU) {
         Writelog "`$UpdateLatestCU is set to true, checking for latest CU"
         $Name = """Cumulative update for Windows $WindowsRelease Version $WindowsVersion for $WindowsArch"""
         #Check if $KBPath exists, if not, create it
@@ -3765,6 +3769,20 @@ try {
         WriteLog "Latest CU saved to $KBPath\$KBFilePath"
     }
 
+    #Update Latest Preview Cumlative Update 
+    #will take Precendence over $UpdateLastestCU if both were set to $true
+    if ($UpdatePreviewCU) {
+        Writelog "`$UpdatePreviewCU is set to true, checking for latest Preview CU"
+        $Name = """Cumulative update Preview for Windows $WindowsRelease Version $WindowsVersion for $WindowsArch"""
+        #Check if $KBPath exists, if not, create it
+        If (-not (Test-Path -Path $KBPath)) {
+            WriteLog "Creating $KBPath"
+            New-Item -Path $KBPath -ItemType Directory -Force | Out-Null
+        }
+        WriteLog "Searching for $name from Microsoft Update Catalog and saving to $KBPath"
+        $KBFilePath = Save-KB -Name $Name -Path $KBPath
+        WriteLog "Latest Preview CU saved to $KBPath\$KBFilePath"
+    }
 
     #Update Latest .NET Framework
     if ($UpdateLatestNet) {
@@ -3795,7 +3813,7 @@ try {
     
     
     #Add Windows packages
-    if ($UpdateLatestCU -or $UpdateLatestNet) {
+    if ($UpdateLatestCU -or $UpdateLatestNet -or $UpdatePreviewCU ) {
         try {
             WriteLog "Adding KBs to $WindowsPartition"
             WriteLog 'This can take 10+ minutes depending on how old the media is and the size of the KB. Please be patient'