diff --git a/src/plugins/platforms/windows/qwindowscontext.cpp b/src/plugins/platforms/windows/qwindowscontext.cpp
index c363b85cb3b..d7a7b373102 100644
--- a/src/plugins/platforms/windows/qwindowscontext.cpp
+++ b/src/plugins/platforms/windows/qwindowscontext.cpp
@@ -204,6 +204,8 @@ QWindowsContext::~QWindowsContext()
     if (d->m_powerDummyWindow)
         DestroyWindow(d->m_powerDummyWindow);
 
+    d->m_screenManager.destroyWindow();
+
     unregisterWindowClasses();
     if (d->m_oleInitializeResult == S_OK || d->m_oleInitializeResult == S_FALSE) {
 #ifdef QT_USE_FACTORY_CACHE_REGISTRATION
diff --git a/src/plugins/platforms/windows/qwindowsscreen.cpp b/src/plugins/platforms/windows/qwindowsscreen.cpp
index a50f9fd4b05..1f22fb4f60e 100644
--- a/src/plugins/platforms/windows/qwindowsscreen.cpp
+++ b/src/plugins/platforms/windows/qwindowsscreen.cpp
@@ -698,11 +698,15 @@ void QWindowsScreenManager::initialize()
     handleScreenChanges();
 }
 
-QWindowsScreenManager::~QWindowsScreenManager()
+void QWindowsScreenManager::destroyWindow()
 {
+    qCDebug(lcQpaScreen) << "Destroying display change observer" << m_displayChangeObserver;
     DestroyWindow(m_displayChangeObserver);
+    m_displayChangeObserver = nullptr;
 }
 
+QWindowsScreenManager::~QWindowsScreenManager() = default;
+
 bool QWindowsScreenManager::isSingleScreen()
 {
     return QWindowsContext::instance()->screenManager().screens().size() < 2;
diff --git a/src/plugins/platforms/windows/qwindowsscreen.h b/src/plugins/platforms/windows/qwindowsscreen.h
index 0467ab2a0c6..ea6a29efe38 100644
--- a/src/plugins/platforms/windows/qwindowsscreen.h
+++ b/src/plugins/platforms/windows/qwindowsscreen.h
@@ -105,6 +105,7 @@ public:
 
     QWindowsScreenManager();
     void initialize();
+    void destroyWindow();
     ~QWindowsScreenManager();
 
     void clearScreens();