diff --git a/Scripts/1_Prereq.ps1 b/Scripts/1_Prereq.ps1
index 87823565..d9e2f442 100644
--- a/Scripts/1_Prereq.ps1
+++ b/Scripts/1_Prereq.ps1
@@ -192,6 +192,18 @@ function  Get-WindowsBuildNumber {
 
 #endregion
 
+#region Installing PSDesiredStateConfiguration from the PowerShell gallery
+
+    # See https://learn.microsoft.com/en-us/powershell/dsc/overview?view=dsc-2.0 for details
+    # on the breaking change that requires this module to be installed.
+    WriteInfoHighlighted "Testing if PSDesiredStateConfiguration is present"
+    if (!(Get-Module -ListAvailable -Name PSDesiredStateConfiguration)) {
+        WriteInfo "`t Module PSDesiredStateConfiguration not found... Downloading"
+        Install-Module -Name PSDesiredStateConfiguration -Repository PSGallery -MaximumVersion 2.99
+    }
+
+#endregion
+
 #region Downloading required Posh Modules
 # Downloading modules into Temp folder if needed.
 
diff --git a/Scripts/3_Deploy.ps1 b/Scripts/3_Deploy.ps1
index dfef20eb..06c6b162 100644
--- a/Scripts/3_Deploy.ps1
+++ b/Scripts/3_Deploy.ps1
@@ -424,7 +424,11 @@ If (-not $isAdmin) {
         WriteInfo "`t Creating OS VHD"
         New-VHD -ParentPath $serverparent.fullname -Path $vhdpath
 
-        $VMTemp = New-VM -Path "$LabFolder\VMs" -Name $VMname -Generation 2 -MemoryStartupBytes $VMConfig.MemoryStartupBytes -SwitchName $SwitchName  -VHDPath $vhdPath
+        if ($VMConfig.VMVersion){
+            $VMTemp = New-VM -Path "$LabFolder\VMs" -Name $VMname -Generation 2 -MemoryStartupBytes $VMConfig.MemoryStartupBytes -SwitchName $SwitchName  -VHDPath $vhdPath -Version $VMConfig.VMVersion
+        }else{
+            $VMTemp = New-VM -Path "$LabFolder\VMs" -Name $VMname -Generation 2 -MemoryStartupBytes $VMConfig.MemoryStartupBytes -SwitchName $SwitchName  -VHDPath $vhdPath
+        }
 
         #Set dynamic memory
         if ($VMConfig.StaticMemory -eq $false){
@@ -547,14 +551,22 @@ If (-not $isAdmin) {
         New-VHD -ParentPath $serverparent.fullname -Path $vhdpath
 
         #Get VM Version
-        [System.Version]$VMVersion=(Get-WindowsImage -ImagePath $VHDPath -Index 1).Version
-        WriteInfo "`t VM Version is $($VMVersion.Build).$($VMVersion.Revision)"
+        [System.Version]$BuildVersion=(Get-WindowsImage -ImagePath $VHDPath -Index 1).Version
+        WriteInfo "`t VM Version is $($BuildVersion.Build).$($BuildVersion.Revision)"
 
         WriteInfo "`t Creating VM"
-        if ($VMConfig.Generation -eq 1){
-            $VMTemp=New-VM -Name $VMname -VHDPath $vhdpath -MemoryStartupBytes $VMConfig.MemoryStartupBytes -path "$LabFolder\VMs" -SwitchName $SwitchName -Generation 1
+        if ($VMConfig.VMVersion){
+            if ($VMConfig.Generation -eq 1){
+                $VMTemp=New-VM -Name $VMname -VHDPath $vhdpath -MemoryStartupBytes $VMConfig.MemoryStartupBytes -path "$LabFolder\VMs" -SwitchName $SwitchName -Generation 1 -Version $VMConfig.VMVersion
+            }else{
+                $VMTemp=New-VM -Name $VMname -VHDPath $vhdpath -MemoryStartupBytes $VMConfig.MemoryStartupBytes -path "$LabFolder\VMs" -SwitchName $SwitchName -Generation 2 -Version $VMConfig.VMVersion
+            }
         }else{
-            $VMTemp=New-VM -Name $VMname -VHDPath $vhdpath -MemoryStartupBytes $VMConfig.MemoryStartupBytes -path "$LabFolder\VMs" -SwitchName $SwitchName -Generation 2
+            if ($VMConfig.Generation -eq 1){
+                $VMTemp=New-VM -Name $VMname -VHDPath $vhdpath -MemoryStartupBytes $VMConfig.MemoryStartupBytes -path "$LabFolder\VMs" -SwitchName $SwitchName -Generation 1
+            }else{
+                $VMTemp=New-VM -Name $VMname -VHDPath $vhdpath -MemoryStartupBytes $VMConfig.MemoryStartupBytes -path "$LabFolder\VMs" -SwitchName $SwitchName -Generation 2
+            }
         }
         $VMTemp | Set-VMMemory -DynamicMemoryEnabled $true
         $VMTemp | Get-VMNetworkAdapter | Rename-VMNetworkAdapter -NewName Management1
@@ -742,7 +754,7 @@ If (-not $isAdmin) {
             WriteInfo "`t`t No sync commands requested"
         }
 
-        if ($VMVersion.Build -ge 17763){
+        if ($BuildVersion.Build -ge 17763){
             $oeminformation=@"
             <OEMInformation>
              <SupportProvider>MSLab</SupportProvider>
@@ -1162,13 +1174,31 @@ If (-not $isAdmin) {
 
         WriteInfo "`t Starting IP for AdditionalNetworks is $global:IP"
 
-    #Create Mount nd VMs directories
+    #Create Mount and VMs directories
         WriteInfoHighlighted "Creating Mountdir"
         New-Item $mountdir -ItemType Directory -Force
 
         WriteInfoHighlighted "Creating VMs dir"
         New-Item "$PSScriptRoot\LAB\VMs" -ItemType Directory -Force
 
+    #unmount&cleanup mounted images
+        WriteInfoHighlighted "Unmounting images from previous run"
+        $MountedImages=Get-WindowsImage -Mounted | Where-Object MountStatus -ne "Invalid"
+        if ($MountedImages){
+            WriteInfo "`t Mounted images found, Dismounting, discarting"
+            $MountedImages | Dismount-WindowsImage -Discard -ErrorAction Ignore
+        }else{
+            WriteInfo "`t No mounted images found"
+        }
+        #cleanup corrupted
+        $InvalidImages=Get-WindowsImage -Mounted | Where-Object MountStatus -eq "Invalid"
+        if ($InvalidImages){
+            WriteInfo "`t Invalid mountpoints found, clearing"
+            Clear-WindowsCorruptMountPoint
+        }else{
+            WriteInfo "`t No invalid mountpoints found"
+        }
+
     #get path for Tools disk
         WriteInfoHighlighted "Looking for Tools Parent Disks"
         $toolsparent=Get-ChildItem "$PSScriptRoot\ParentDisks" -Recurse | Where-Object name -eq tools.vhdx
@@ -1493,9 +1523,9 @@ If (-not $isAdmin) {
                 if(-not $VMConfig.configuration) {
                     $VMConfig.configuration = "Simple"
                 }
-                # Ensure that MemoryStartupBytes is set to use 512MB as default
+                # Ensure that MemoryStartupBytes is set to use 1GB as default
                 if(-not $VMConfig.MemoryStartupBytes) {
-                    $VMConfig.MemoryStartupBytes = 512MB
+                    $VMConfig.MemoryStartupBytes = 1GB
                 }
 
                 #create VM with Shared configuration
diff --git a/Scripts/LabConfig.ps1 b/Scripts/LabConfig.ps1
index abb600a6..bdb2ec7e 100644
--- a/Scripts/LabConfig.ps1
+++ b/Scripts/LabConfig.ps1
@@ -4,9 +4,9 @@ $LabConfig=@{AllowedVLANs="1-10,711-719" ; DomainAdminName='LabAdmin'; AdminPass
 # Windows Server 2022
 1..4 | ForEach-Object {$LABConfig.VMs += @{ VMName = "$S2D$_" ; Configuration = 'S2D' ; ParentVHD = 'Win2022Core_G2.vhdx'; SSDNumber = 0; SSDSize=800GB ; HDDNumber = 12; HDDSize= 4TB ; MemoryStartupBytes= 512MB }}
 # Or Azure Stack HCI 23H2 (non-domain joined) https://github.com/DellGEOS/AzureStackHOLs/tree/main/lab-guides/01a-DeployAzureStackHCICluster-CloudBasedDeployment
-#1..2 | ForEach-Object {$LABConfig.VMs += @{ VMName = "ASNode$_" ; Configuration = 'S2D' ; ParentVHD = 'AzSHCI23H2_G2.vhdx' ; HDDNumber = 4 ; HDDSize= 2TB ; MemoryStartupBytes= 20GB; VMProcessorCount=16 ; vTPM=$true ; Unattend="NoDjoin" ; NestedVirt=$true }}
+#1..2 | ForEach-Object {$LABConfig.VMs += @{ VMName = "ASNode$_" ; Configuration = 'S2D' ; ParentVHD = 'AzSHCI23H2_G2.vhdx' ; HDDNumber = 4 ; HDDSize= 2TB ; MemoryStartupBytes= 24GB; VMProcessorCount=16 ; vTPM=$true ; Unattend="NoDjoin" ; NestedVirt=$true }}
 # Or Windows Server 2025 https://github.com/DellGEOS/AzureStackHOLs/tree/main/lab-guides/03-TestingWindowsServerInsider
-#1..2 | ForEach-Object {$LABConfig.VMs += @{ VMName="S2D$_" ; Configuration='S2D' ; ParentVHD='WinSrvInsiderCore_26063.vhdx' ; HDDNumber=4 ; HDDSize=2TB ; MemoryStartupBytes=1GB; VMProcessorCount=4 ; vTPM=$true}}
+#1..2 | ForEach-Object {$LABConfig.VMs += @{ VMName="S2D$_" ; Configuration='S2D' ; ParentVHD='Win2025Core_G2.vhdx' ; HDDNumber=4 ; HDDSize=2TB ; MemoryStartupBytes=1GB; VMProcessorCount=4 ; vTPM=$true}}
 
 ### HELP ###
 
@@ -340,6 +340,11 @@ $LabConfig=@{AllowedVLANs="1-10,711-719" ; DomainAdminName='LabAdmin'; AdminPass
     #DisableTimeIC (Optional)
         Example DisableTimeIC=$true
         if $true, time Hyper-V Time Synchronization Integration Service (VMICTimeProvider) will be disabled
+
+    #VMVersion (Optional)
+        Example VMVersion="10.0"
+        default versions - Windows Server 2022 = 10.0, Widnows Server 2025 = 12.0
+        https://learn.microsoft.com/en-us/windows-server/virtualization/hyper-v/deploy/Upgrade-virtual-machine-version-in-Hyper-V-on-Windows-or-Windows-Server
     #>
 #endregion