diff --git a/DDrawCompat/Config/Config.cpp b/DDrawCompat/Config/Config.cpp
index 3126db3..48c2943 100644
--- a/DDrawCompat/Config/Config.cpp
+++ b/DDrawCompat/Config/Config.cpp
@@ -13,6 +13,7 @@ namespace Config
 	Settings::DisplayResolution displayResolution;
 	Settings::ForceD3D9On12 forceD3D9On12;
 	Settings::FullscreenMode fullscreenMode;
+	Settings::RemoveBorders removeBorders;
 	Settings::RenderColorDepth renderColorDepth;
 	Settings::ResolutionScale resolutionScale;
 	Settings::SpriteDetection spriteDetection;
diff --git a/DDrawCompat/Config/Config.h b/DDrawCompat/Config/Config.h
index 68cb4a2..a29e4ef 100644
--- a/DDrawCompat/Config/Config.h
+++ b/DDrawCompat/Config/Config.h
@@ -11,6 +11,7 @@
 #include <Config/Settings/DisplayResolution.h>
 #include <Config/Settings/ForceD3D9On12.h>
 #include <Config/Settings/FullscreenMode.h>
+#include <Config/Settings/RemoveBorders.h>
 #include <Config/Settings/RenderColorDepth.h>
 #include <Config/Settings/ResolutionScale.h>
 #include <Config/Settings/SpriteDetection.h>
@@ -34,6 +35,7 @@ namespace Config
 	extern Settings::DisplayResolution displayResolution;
 	extern Settings::ForceD3D9On12 forceD3D9On12;
 	extern Settings::FullscreenMode fullscreenMode;
+	extern Settings::RemoveBorders removeBorders;
 	extern Settings::RenderColorDepth renderColorDepth;
 	extern Settings::ResolutionScale resolutionScale;
 	extern Settings::SpriteDetection spriteDetection;
diff --git a/DDrawCompat/Config/Settings/RemoveBorders.h b/DDrawCompat/Config/Settings/RemoveBorders.h
new file mode 100644
index 0000000..e43d52b
--- /dev/null
+++ b/DDrawCompat/Config/Settings/RemoveBorders.h
@@ -0,0 +1,18 @@
+#pragma once
+
+#include <Config/EnumSetting.h>
+
+namespace Config
+{
+	namespace Settings
+	{
+		class RemoveBorders : public MappedSetting<bool>
+		{
+		public:
+			RemoveBorders()
+				: MappedSetting("RemoveBorders", "off", { {"off", false}, {"on", true} })
+			{
+			}
+		};
+	}
+}
diff --git a/DDrawCompat/DDraw/DirectDraw.cpp b/DDrawCompat/DDraw/DirectDraw.cpp
index 038942d..313cba2 100644
--- a/DDrawCompat/DDraw/DirectDraw.cpp
+++ b/DDrawCompat/DDraw/DirectDraw.cpp
@@ -83,7 +83,18 @@ namespace
 		HRESULT result = getOrigVtable(This).SetCooperativeLevel(This, hWnd, dwFlags);
 		if (SUCCEEDED(result))
 		{
-			DDraw::TagSurface::create(*CompatPtr<IDirectDraw>::from(This));
+			auto tagSurface = DDraw::TagSurface::get(*CompatPtr<IDirectDraw>::from(This));
+			if (tagSurface)
+			{
+				if (dwFlags & DDSCL_FULLSCREEN)
+				{
+					tagSurface->setFullscreenWindow(hWnd);
+				}
+				else if (dwFlags & DDSCL_NORMAL)
+				{
+					tagSurface->setFullscreenWindow(nullptr);
+				}
+			}
 		}
 		return result;
 	}
diff --git a/DDrawCompat/DDraw/Surfaces/TagSurface.cpp b/DDrawCompat/DDraw/Surfaces/TagSurface.cpp
index dc0ed95..6f4c2e7 100644
--- a/DDrawCompat/DDraw/Surfaces/TagSurface.cpp
+++ b/DDrawCompat/DDraw/Surfaces/TagSurface.cpp
@@ -1,5 +1,6 @@
 #include <map>
 
+#include <Config/Config.h>
 #include <DDraw/DirectDraw.h>
 #include <DDraw/Surfaces/TagSurface.h>
 
@@ -10,14 +11,23 @@ namespace
 
 namespace DDraw
 {
+	TagSurface::TagSurface(DWORD origCaps, void* ddObject)
+		: Surface(origCaps)
+		, m_ddObject(ddObject)
+		, m_fullscreenWindow(nullptr)
+		, m_fullscreenWindowStyle(0)
+		, m_fullscreenWindowExStyle(0)
+	{
+	}
+
+	TagSurface::~TagSurface()
+	{
+		setFullscreenWindow(nullptr);
+		g_ddObjects.erase(m_ddObject);
+	}
+
 	HRESULT TagSurface::create(CompatRef<IDirectDraw> dd)
 	{
-		auto ddObject = DDraw::DirectDraw::getDdObject(dd.get());
-		if (g_ddObjects.find(ddObject) != g_ddObjects.end())
-		{
-			return DD_OK;
-		}
-
 		DDSURFACEDESC desc = {};
 		desc.dwSize = sizeof(desc);
 		desc.dwFlags = DDSD_WIDTH | DDSD_HEIGHT | DDSD_CAPS;
@@ -25,6 +35,7 @@ namespace DDraw
 		desc.dwHeight = 1;
 		desc.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | DDSCAPS_SYSTEMMEMORY;
 
+		auto ddObject = DDraw::DirectDraw::getDdObject(dd.get());
 		auto privateData(std::make_unique<TagSurface>(desc.ddsCaps.dwCaps, ddObject));
 		g_ddObjects[ddObject] = privateData.get();
 
@@ -32,6 +43,18 @@ namespace DDraw
 		return Surface::create(dd, desc, surface, std::move(privateData));
 	}
 
+	TagSurface* TagSurface::findFullscreenWindow(HWND hwnd)
+	{
+		for (auto& pair : g_ddObjects)
+		{
+			if (hwnd == pair.second->m_fullscreenWindow)
+			{
+				return pair.second;
+			}
+		}
+		return nullptr;
+	}
+
 	void TagSurface::forEachDirectDraw(std::function<void(CompatRef<IDirectDraw7>)> callback)
 	{
 		struct DirectDrawInterface
@@ -49,8 +72,75 @@ namespace DDraw
 		}
 	}
 
-	TagSurface::~TagSurface()
+	TagSurface* TagSurface::get(CompatRef<IDirectDraw> dd)
 	{
-		g_ddObjects.erase(m_ddObject);
+		auto ddObject = DDraw::DirectDraw::getDdObject(dd.get());
+		auto it = g_ddObjects.find(ddObject);
+		if (it != g_ddObjects.end())
+		{
+			return it->second;
+		}
+
+		if (FAILED(create(dd)))
+		{
+			return nullptr;
+		}
+		return g_ddObjects[ddObject];
+	}
+
+	void TagSurface::setFullscreenWindow(HWND hwnd)
+	{
+		if (m_fullscreenWindow == hwnd)
+		{
+			return;
+		}
+		HWND prevFullscreenWindow = m_fullscreenWindow;
+		m_fullscreenWindow = hwnd;
+
+		if (Config::removeBorders.get())
+		{
+			if (hwnd)
+			{
+				setWindowStyle(CALL_ORIG_FUNC(GetWindowLongA)(hwnd, GWL_STYLE));
+				setWindowExStyle(CALL_ORIG_FUNC(GetWindowLongA)(hwnd, GWL_EXSTYLE));
+			}
+			else if (prevFullscreenWindow)
+			{
+				CALL_ORIG_FUNC(SetWindowLongA)(prevFullscreenWindow, GWL_STYLE, m_fullscreenWindowStyle);
+				CALL_ORIG_FUNC(SetWindowLongA)(prevFullscreenWindow, GWL_EXSTYLE, m_fullscreenWindowExStyle);
+				m_fullscreenWindowStyle = 0;
+				m_fullscreenWindowExStyle = 0;
+			}
+		}
+	}
+
+	LONG TagSurface::setWindowStyle(LONG style)
+	{
+		auto lastError = GetLastError();
+		SetLastError(0);
+		LONG prevStyle = CALL_ORIG_FUNC(SetWindowLongA)(m_fullscreenWindow, GWL_STYLE, style);
+		if (0 != prevStyle || 0 == GetLastError())
+		{
+			CALL_ORIG_FUNC(SetWindowLongA)(m_fullscreenWindow, GWL_STYLE,
+				(style | WS_POPUP) & ~(WS_BORDER | WS_DLGFRAME | WS_SYSMENU | WS_THICKFRAME));
+			m_fullscreenWindowStyle = style;
+			SetLastError(lastError);
+		}
+		return prevStyle;
+	}
+
+	LONG TagSurface::setWindowExStyle(LONG exStyle)
+	{
+		auto lastError = GetLastError();
+		SetLastError(0);
+		LONG prevExStyle = CALL_ORIG_FUNC(SetWindowLongA)(m_fullscreenWindow, GWL_EXSTYLE, exStyle);
+		if (0 != prevExStyle || 0 == GetLastError())
+		{
+			CALL_ORIG_FUNC(SetWindowLongA)(m_fullscreenWindow, GWL_EXSTYLE,
+				exStyle & ~(WS_EX_CLIENTEDGE | WS_EX_STATICEDGE | WS_EX_WINDOWEDGE));
+			m_fullscreenWindowExStyle = exStyle;
+			SetLastError(lastError);
+		}
+		return prevExStyle;
 	}
 }
diff --git a/DDrawCompat/DDraw/Surfaces/TagSurface.h b/DDrawCompat/DDraw/Surfaces/TagSurface.h
index 3778d6f..bda76f2 100644
--- a/DDrawCompat/DDraw/Surfaces/TagSurface.h
+++ b/DDrawCompat/DDraw/Surfaces/TagSurface.h
@@ -11,13 +11,24 @@ namespace DDraw
 	class TagSurface : public Surface
 	{
 	public:
-		TagSurface(DWORD origCaps, void* ddObject) : Surface(origCaps), m_ddObject(ddObject) {}
+		TagSurface(DWORD origCaps, void* ddObject);
 		virtual ~TagSurface() override;
 
-		static HRESULT create(CompatRef<IDirectDraw> dd);
+		static TagSurface* get(CompatRef<IDirectDraw> dd);
+		static TagSurface* findFullscreenWindow(HWND hwnd);
+
 		static void forEachDirectDraw(std::function<void(CompatRef<IDirectDraw7>)> callback);
 
+		void setFullscreenWindow(HWND hwnd);
+		LONG setWindowStyle(LONG style);
+		LONG setWindowExStyle(LONG exStyle);
+
 	private:
+		static HRESULT create(CompatRef<IDirectDraw> dd);
+
 		void* m_ddObject;
+		HWND m_fullscreenWindow;
+		LONG m_fullscreenWindowStyle;
+		LONG m_fullscreenWindowExStyle;
 	};
 }
diff --git a/DDrawCompat/DDrawCompat.vcxproj b/DDrawCompat/DDrawCompat.vcxproj
index c100f96..157b539 100644
--- a/DDrawCompat/DDrawCompat.vcxproj
+++ b/DDrawCompat/DDrawCompat.vcxproj
@@ -228,6 +228,7 @@
     <ClInclude Include="Config\Settings\DisplayResolution.h" />
     <ClInclude Include="Config\Settings\ForceD3D9On12.h" />
     <ClInclude Include="Config\Settings\FullscreenMode.h" />
+    <ClInclude Include="Config\Settings\RemoveBorders.h" />
     <ClInclude Include="Config\Settings\RenderColorDepth.h" />
     <ClInclude Include="Config\Settings\ResolutionScale.h" />
     <ClInclude Include="Config\Settings\SpriteDetection.h" />
diff --git a/DDrawCompat/DDrawCompat.vcxproj.filters b/DDrawCompat/DDrawCompat.vcxproj.filters
index 576e100..2103f1b 100644
--- a/DDrawCompat/DDrawCompat.vcxproj.filters
+++ b/DDrawCompat/DDrawCompat.vcxproj.filters
@@ -552,6 +552,9 @@
     <ClInclude Include="Config\Settings\AltTabFix.h">
       <Filter>Header Files\Config\Settings</Filter>
     </ClInclude>
+    <ClInclude Include="Config\Settings\RemoveBorders.h">
+      <Filter>Header Files\Config\Settings</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="Gdi\Gdi.cpp">
diff --git a/DDrawCompat/Gdi/WinProc.cpp b/DDrawCompat/Gdi/WinProc.cpp
index 946da25..2a084e8 100644
--- a/DDrawCompat/Gdi/WinProc.cpp
+++ b/DDrawCompat/Gdi/WinProc.cpp
@@ -6,10 +6,12 @@
 #include <Common/Hook.h>
 #include <Common/Log.h>
 #include <Common/ScopedSrwLock.h>
+#include <Config/Config.h>
 #include <Dll/Dll.h>
 #include <DDraw/DirectDraw.h>
 #include <DDraw/RealPrimarySurface.h>
 #include <DDraw/Surfaces/PrimarySurface.h>
+#include <DDraw/Surfaces/TagSurface.h>
 #include <Gdi/CompatDc.h>
 #include <Gdi/Cursor.h>
 #include <Gdi/Dc.h>
@@ -426,6 +428,22 @@ namespace
 				return reinterpret_cast<LONG>(oldWndProc);
 			}
 		}
+		else if ((GWL_STYLE == nIndex || GWL_EXSTYLE == nIndex) && Config::removeBorders.get())
+		{
+			auto tagSurface = DDraw::TagSurface::findFullscreenWindow(hWnd);
+			if (tagSurface)
+			{
+				if (GWL_STYLE == nIndex)
+				{
+					return tagSurface->setWindowStyle(dwNewLong);
+				}
+				else
+				{
+					return tagSurface->setWindowExStyle(dwNewLong);
+				}
+			}
+		}
+
 		return origSetWindowLong(hWnd, nIndex, dwNewLong);
 	}