diff --git a/src/corelib/global/qnamespace.qdoc b/src/corelib/global/qnamespace.qdoc
index b2eefbe5aaa..e55ffdc2290 100644
--- a/src/corelib/global/qnamespace.qdoc
+++ b/src/corelib/global/qnamespace.qdoc
@@ -2345,6 +2345,8 @@
     \value WindowDoesNotAcceptFocus Informs the window system that this window should
            not receive the input focus.
 
+    \note On Windows, this prevents the window from appearing in the taskbar.
+
     \value MaximizeUsingFullscreenGeometryHint Deprecated alias for Qt::ExpandedClientAreaHint
 
     \value [since 6.9] ExpandedClientAreaHint Requests that the window's client area is
diff --git a/src/plugins/platforms/windows/qwindowscontext.cpp b/src/plugins/platforms/windows/qwindowscontext.cpp
index 58514c96e1d..a91d2369475 100644
--- a/src/plugins/platforms/windows/qwindowscontext.cpp
+++ b/src/plugins/platforms/windows/qwindowscontext.cpp
@@ -1217,6 +1217,8 @@ bool QWindowsContext::windowsProc(HWND hwnd, UINT message,
     case QtWindows::PointerEvent:
         return sessionManagerInteractionBlocked() || d->m_pointerHandler.translatePointerEvent(platformWindow->window(), hwnd, et, msg, result);
     case QtWindows::FocusInEvent: // see QWindowsWindow::requestActivateWindow().
+        if (platformWindow->window()->flags() & Qt::WindowDoesNotAcceptFocus)
+            return false;
     case QtWindows::FocusOutEvent:
         handleFocusEvent(et, platformWindow);
         return true;
diff --git a/src/plugins/platforms/windows/qwindowswindow.cpp b/src/plugins/platforms/windows/qwindowswindow.cpp
index d7be8bbf4b1..78447ba9211 100644
--- a/src/plugins/platforms/windows/qwindowswindow.cpp
+++ b/src/plugins/platforms/windows/qwindowswindow.cpp
@@ -819,6 +819,9 @@ void WindowCreationData::fromWindow(const QWindow *w, const Qt::WindowFlags flag
 
     style |= WS_CLIPSIBLINGS | WS_CLIPCHILDREN ;
 
+    if (flags & Qt::WindowDoesNotAcceptFocus)
+        exStyle |= WS_EX_NOACTIVATE;
+
     if (topLevel) {
         if ((type == Qt::Window || dialog || tool)) {
             if (!(flags & Qt::FramelessWindowHint)) {