diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4d0a4fc..555b360 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -97,8 +97,17 @@ target_compile_definitions(${PROJECT_NAME} PRIVATE
 )
 
 if(MSVC)
+    set(_WIN32_WINNT_WIN10 0x0A00)
+    set(NTDDI_WIN10_CO 0x0A00000B)
+    target_compile_definitions(${PROJECT_NAME} PRIVATE
+        _CRT_NON_CONFORMING_SWPRINTFS _CRT_SECURE_NO_WARNINGS
+        _ENABLE_EXTENDED_ALIGNED_STORAGE NOMINMAX UNICODE
+        _UNICODE WIN32_LEAN_AND_MEAN WINRT_LEAN_AND_MEAN _DWMAPI_
+        WINVER=${_WIN32_WINNT_WIN10} _WIN32_WINNT=${_WIN32_WINNT_WIN10}
+        _WIN32_IE=${_WIN32_WINNT_WIN10} NTDDI_VERSION=${NTDDI_WIN10_CO}
+    )
     target_compile_options(${PROJECT_NAME} PRIVATE
-        /W4 /WX
+        /utf-8 /W4 /WX
     )
 else()
     target_compile_options(${PROJECT_NAME} PRIVATE
diff --git a/framelesshelper_windows.h b/framelesshelper_windows.h
index 5809a5d..ed3ce21 100644
--- a/framelesshelper_windows.h
+++ b/framelesshelper_windows.h
@@ -58,23 +58,19 @@
 #  define NTDDI_WIN10_CO 0x0A00000B
 #endif
 
-#ifdef WINVER
-#  undef WINVER
+#ifndef WINVER
+#  define WINVER _WIN32_WINNT_WIN10
 #endif
 
-#ifdef _WIN32_WINNT
-#  undef _WIN32_WINNT
+#ifndef _WIN32_WINNT
+#  define _WIN32_WINNT _WIN32_WINNT_WIN10
 #endif
 
-#ifdef NTDDI_VERSION
-#  undef NTDDI_VERSION
+#ifndef NTDDI_VERSION
+#  define NTDDI_VERSION NTDDI_WIN10_CO
 #endif
 
-#define WINVER _WIN32_WINNT_WIN10
-#define _WIN32_WINNT _WIN32_WINNT_WIN10
-#define NTDDI_VERSION NTDDI_WIN10_CO
-
-#include <QtCore/qt_windows.h>
+#include <windows.h>
 #include <uxtheme.h>
 #include <shellapi.h>
 #include <dwmapi.h>
diff --git a/framelessquickhelper.cpp b/framelessquickhelper.cpp
index a28e2ae..001ce42 100644
--- a/framelessquickhelper.cpp
+++ b/framelessquickhelper.cpp
@@ -30,7 +30,7 @@
 #include "framelesswindowsmanager.h"
 #include "utilities.h"
 #ifdef Q_OS_WINDOWS
-#  include <QtCore/qt_windows.h>
+#  include "framelesshelper_windows.h"
 #endif
 
 FRAMELESSHELPER_BEGIN_NAMESPACE
diff --git a/qwinregistry_p.h b/qwinregistry_p.h
index 2a4c3e0..a88ac07 100644
--- a/qwinregistry_p.h
+++ b/qwinregistry_p.h
@@ -56,7 +56,7 @@
 #else // QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
 #include <QtCore/qpair.h>
 #include <QtCore/qstring.h>
-#include <QtCore/qt_windows.h>
+#include "framelesshelper_windows.h"
 
 QT_BEGIN_NAMESPACE