diff --git a/assets/win81x64.xml b/assets/win81x64.xml
index d0e73a9..abe0cbe 100644
--- a/assets/win81x64.xml
+++ b/assets/win81x64.xml
@@ -91,7 +91,7 @@
       </ImageInstall>
       <UserData>
         <ProductKey>
-          <Key/>
+          <Key>334NH-RXG76-64THK-C7CKG-D3VPT</Key>
           <WillShowUI>OnError</WillShowUI>
         </ProductKey>
         <AcceptEula>true</AcceptEula>