diff --git a/assets/win81x64.xml b/assets/win81x64.xml
index 1598607..9354c80 100644
--- a/assets/win81x64.xml
+++ b/assets/win81x64.xml
@@ -85,7 +85,7 @@
       </ImageInstall>
       <UserData>
         <ProductKey>
-          <Key/>
+          <Key>GCRJD-8NW9H-F2CDX-CCM8D-9D6T9</Key>
           <WillShowUI>Never</WillShowUI>
         </ProductKey>
         <AcceptEula>true</AcceptEula>