diff --git a/packaging/windows/OpenRA.nsi b/packaging/windows/OpenRA.nsi
index a848ad66bf..cbebe99a81 100644
--- a/packaging/windows/OpenRA.nsi
+++ b/packaging/windows/OpenRA.nsi
@@ -136,11 +136,11 @@ SectionGroupEnd
 ;***************************
 Section "-DotNet" DotNet
 	ClearErrors
-	ReadRegDWORD $0 HKLM "SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.5" "Install"
+	ReadRegDWORD $0 HKLM "SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Client" "Install"
 	IfErrors error 0
 	IntCmp $0 1 0 error 0
 	ClearErrors
-	ReadRegDWORD $0 HKLM "SOFTWARE\Microsoft\NET Framework Setup\NDP\v4.0" "SP"
+	ReadRegDWORD $0 HKLM "SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full" "Install"
 	IfErrors error 0
 	IntCmp $0 1 done error done
 	error: