diff --git a/src/ManagedShell.WindowsTasks/ApplicationWindow.cs b/src/ManagedShell.WindowsTasks/ApplicationWindow.cs
index 03411df5..2612d3f8 100644
--- a/src/ManagedShell.WindowsTasks/ApplicationWindow.cs
+++ b/src/ManagedShell.WindowsTasks/ApplicationWindow.cs
@@ -301,8 +301,9 @@ public IntPtr HMonitor
         {
             get
             {
-                if (_hMonitor == IntPtr.Zero)
+                if (_hMonitor == IntPtr.Zero || EnvironmentHelper.IsWindows8OrBetter)
                 {
+                    // Ignore the cache on Windows 8+, as it may be wrong.
                     SetMonitor();
                 }