diff --git a/assets/win2019-hv.cmd b/assets/win2019-hv.cmd
index 7f3bfdaa..f8959850 100644
--- a/assets/win2019-hv.cmd
+++ b/assets/win2019-hv.cmd
@@ -82,7 +82,7 @@ rem Disable RemoteApp allowlist.
 reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Terminal Server\TSAppAllowList" /v "fDisabledAllowList" /t REG_DWORD /d 1 /f
 
 rem Turn off automatic Windows Update downloads.
-reg.exe add "HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU" /v "NoAutoUpdate" /t REG_DWORD /d 1 /f
+reg.exe add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update" /v "AUOptions" /t REG_DWORD /d 1 /f
 
 rem Enable Network Discovery.
 netsh advfirewall firewall set rule group="@FirewallAPI.dll,-32752" new enable=Yes