feat: Improve LTSC and IoT edition handling (#1926)

assets/win10x64-ltsc.xml

@@ -61,12 +61,6 @@
       </DiskConfiguration>
       <ImageInstall>
         <OSImage>
-          <InstallFrom>
-           <MetaData wcm:action="add">
-              <Key>/image/index</Key>
-              <Value>1</Value>
-            </MetaData>
-          </InstallFrom>
           <InstallTo>
             <DiskID>0</DiskID>
             <PartitionID>3</PartitionID>
@@ -86,6 +80,9 @@
         <AcceptEula>true</AcceptEula>
         <FullName>Docker</FullName>
         <Organization>Windows for Docker</Organization>
+        <ProductKey>
+          <Key>M7XTQ-FN8P6-TTKYV-9D4CC-J462D</Key>
+        </ProductKey>
       </UserData>
       <EnableFirewall>false</EnableFirewall>
       <Diagnostics>