diff --git a/subsystems/win32/win32k/eng/alphablend.c b/subsystems/win32/win32k/eng/alphablend.c
index 3322dc2c0f9..d54af52e695 100644
--- a/subsystems/win32/win32k/eng/alphablend.c
+++ b/subsystems/win32/win32k/eng/alphablend.c
@@ -305,11 +305,6 @@ IntEngAlphaBlend(IN SURFOBJ *psoDest,
         return TRUE;
     }
 
-    SURFACE_LockBitmapBits(psurfDest);
-
-    if (psoSource != psoDest)
-        SURFACE_LockBitmapBits(psurfSource);
-
     /* Call the driver's DrvAlphaBlend if available */
     if (psurfDest->flHooks & HOOK_ALPHABLEND)
     {
@@ -324,10 +319,6 @@ IntEngAlphaBlend(IN SURFOBJ *psoDest,
                             DestRect, SourceRect, BlendObj);
     }
 
-    if (psoSource != psoDest)
-        SURFACE_UnlockBitmapBits(psurfSource);
-    SURFACE_UnlockBitmapBits(psurfDest);
-
     return ret;
 }
 
diff --git a/subsystems/win32/win32k/eng/bitblt.c b/subsystems/win32/win32k/eng/bitblt.c
index 88ee1902993..fdd5149a86e 100644
--- a/subsystems/win32/win32k/eng/bitblt.c
+++ b/subsystems/win32/win32k/eng/bitblt.c
@@ -582,19 +582,6 @@ IntEngBitBltEx(
         psurfSrc = NULL;
     }
 
-    if (bRemoveMouse)
-    {
-        SURFACE_LockBitmapBits(psurfTrg);
-
-        if (psoSrc)
-        {
-            if (psoSrc != psoTrg)
-            {
-                SURFACE_LockBitmapBits(psurfSrc);
-            }
-        }
-    }
-
     /* Is the target surface device managed? */
     if (psurfTrg->flHooks & HOOK_BITBLT)
     {
@@ -632,18 +619,6 @@ IntEngBitBltEx(
 
     // FIXME: cleanup temp surface!
 
-    if (bRemoveMouse)
-    {
-        if (psoSrc)
-        {
-            if (psoSrc != psoTrg)
-            {
-                SURFACE_UnlockBitmapBits(psurfSrc);
-            }
-        }
-        SURFACE_UnlockBitmapBits(psurfTrg);
-    }
-
     return bResult;
 }
 
@@ -972,8 +947,6 @@ IntEngMaskBlt(SURFOBJ *psoDest,
     ASSERT(psoDest);
     psurfDest = CONTAINING_RECORD(psoDest, SURFACE, SurfObj);
 
-    SURFACE_LockBitmapBits(psurfDest);
-
     /* Dummy BitBlt to let driver know that it should flush its changes.
        This should really be done using a call to DrvSynchronizeSurface,
        but the VMware driver doesn't hook that call. */
@@ -989,8 +962,6 @@ IntEngMaskBlt(SURFOBJ *psoDest,
                    DestRect, pptlMask, pptlMask, pbo, BrushOrigin,
                    R4_NOOP, FALSE);
 
-    SURFACE_UnlockBitmapBits(psurfDest);
-
     return ret;
 }
 
diff --git a/subsystems/win32/win32k/eng/copybits.c b/subsystems/win32/win32k/eng/copybits.c
index 598f8ee761d..361c526e409 100644
--- a/subsystems/win32/win32k/eng/copybits.c
+++ b/subsystems/win32/win32k/eng/copybits.c
@@ -53,13 +53,7 @@ EngCopyBits(SURFOBJ *psoDest,
     ASSERT(psoDest != NULL && psoSource != NULL && DestRect != NULL && SourcePoint != NULL);
 
     psurfSource = CONTAINING_RECORD(psoSource, SURFACE, SurfObj);
-    SURFACE_LockBitmapBits(psurfSource);
-
     psurfDest = CONTAINING_RECORD(psoDest, SURFACE, SurfObj);
-    if (psoDest != psoSource)
-    {
-        SURFACE_LockBitmapBits(psurfDest);
-    }
 
     // FIXME: Don't punt to the driver's DrvCopyBits immediately. Instead,
     //        mark the copy block function to be DrvCopyBits instead of the
@@ -180,12 +174,6 @@ EngCopyBits(SURFOBJ *psoDest,
     }
 
 cleanup:
-    if (psoDest != psoSource)
-    {
-        SURFACE_UnlockBitmapBits(psurfDest);
-    }
-    SURFACE_UnlockBitmapBits(psurfSource);
-
     return ret;
 }
 
diff --git a/subsystems/win32/win32k/eng/gradient.c b/subsystems/win32/win32k/eng/gradient.c
index 34e5c3d92a4..c0ccaf84443 100644
--- a/subsystems/win32/win32k/eng/gradient.c
+++ b/subsystems/win32/win32k/eng/gradient.c
@@ -548,7 +548,6 @@ IntEngGradientFill(
   psurf = CONTAINING_RECORD(psoDest, SURFACE, SurfObj);
   ASSERT(psurf);
 
-  SURFACE_LockBitmapBits(psurf);
   if(psurf->flHooks & HOOK_GRADIENTFILL)
   {
     Ret = GDIDEVFUNCS(psoDest).GradientFill(
@@ -560,7 +559,6 @@ IntEngGradientFill(
     Ret = EngGradientFill(psoDest, pco, pxlo, pVertex, nVertex, pMesh, nMesh, prclExtents,
                           pptlDitherOrg, ulMode);
   }
-  SURFACE_UnlockBitmapBits(psurf);
 
   return Ret;
 }
diff --git a/subsystems/win32/win32k/eng/lineto.c b/subsystems/win32/win32k/eng/lineto.c
index dadb7228cf3..81bff70ebc0 100644
--- a/subsystems/win32/win32k/eng/lineto.c
+++ b/subsystems/win32/win32k/eng/lineto.c
@@ -565,8 +565,6 @@ IntEngLineTo(SURFOBJ *psoDest,
     if (b.left == b.right) b.right++;
     if (b.top == b.bottom) b.bottom++;
 
-    SURFACE_LockBitmapBits(psurfDest);
-
     if (psurfDest->flHooks & HOOK_LINETO)
     {
         /* Call the driver's DrvLineTo */
@@ -586,8 +584,6 @@ IntEngLineTo(SURFOBJ *psoDest,
         ret = EngLineTo(psoDest, ClipObj, pbo, x1, y1, x2, y2, RectBounds, Mix);
     }
 
-    SURFACE_UnlockBitmapBits(psurfDest);
-
     return ret;
 }
 
diff --git a/subsystems/win32/win32k/eng/mouse.c b/subsystems/win32/win32k/eng/mouse.c
index 6d35c9e8fa7..ab65381ac2b 100644
--- a/subsystems/win32/win32k/eng/mouse.c
+++ b/subsystems/win32/win32k/eng/mouse.c
@@ -540,14 +540,13 @@ IntEngMovePointer(
     IN LONG y,
     IN RECTL *prcl)
 {
-    SURFACE *psurf = CONTAINING_RECORD(pso, SURFACE, SurfObj);
     PPDEVOBJ ppdev = (PPDEVOBJ)pso->hdev;
     if(ppdev->SafetyRemoveLevel)
         return ;
 
-    SURFACE_LockBitmapBits(psurf);
+    EngAcquireSemaphore(ppdev->hsemDevLock);
     ppdev->pfnMovePointer(pso, x, y, prcl);
-    SURFACE_UnlockBitmapBits(psurf);
+    EngReleaseSemaphore(ppdev->hsemDevLock);
 }
 
 ULONG APIENTRY
@@ -564,13 +563,12 @@ IntEngSetPointerShape(
    IN FLONG fl)
 {
     ULONG ulResult = SPS_DECLINE;
-    SURFACE *psurf = CONTAINING_RECORD(pso, SURFACE, SurfObj);
     PFN_DrvSetPointerShape pfnSetPointerShape;
     PPDEVOBJ ppdev = GDIDEV(pso);
 
     pfnSetPointerShape = GDIDEVFUNCS(pso).SetPointerShape;
 
-    SURFACE_LockBitmapBits(psurf);
+    EngAcquireSemaphore(ppdev->hsemDevLock);
     if (pfnSetPointerShape)
     {
         ulResult = pfnSetPointerShape(pso,
@@ -608,7 +606,7 @@ IntEngSetPointerShape(
         ppdev->pfnMovePointer = EngMovePointer;
     }
 
-    SURFACE_UnlockBitmapBits(psurf);
+    EngReleaseSemaphore(ppdev->hsemDevLock);
 
     return ulResult;
 }
diff --git a/subsystems/win32/win32k/eng/paint.c b/subsystems/win32/win32k/eng/paint.c
index 36f27104cfe..9fd6565db1c 100644
--- a/subsystems/win32/win32k/eng/paint.c
+++ b/subsystems/win32/win32k/eng/paint.c
@@ -32,7 +32,7 @@
 #define NDEBUG
 #include <debug.h>
 
-static BOOL APIENTRY FillSolidUnlocked(SURFOBJ *pso, PRECTL pRect, ULONG iColor)
+BOOL APIENTRY FillSolid(SURFOBJ *pso, PRECTL pRect, ULONG iColor)
 {
   LONG y;
   ULONG LineWidth;
@@ -41,7 +41,6 @@ static BOOL APIENTRY FillSolidUnlocked(SURFOBJ *pso, PRECTL pRect, ULONG iColor)
   ASSERT(pso);
   ASSERT(pRect);
   psurf = CONTAINING_RECORD(pso, SURFACE, SurfObj);
-  MouseSafetyOnDrawStart(pso, pRect->left, pRect->top, pRect->right, pRect->bottom);
   LineWidth  = pRect->right - pRect->left;
   DPRINT(" LineWidth: %d, top: %d, bottom: %d\n", LineWidth, pRect->top, pRect->bottom);
   for (y = pRect->top; y < pRect->bottom; y++)
@@ -49,22 +48,9 @@ static BOOL APIENTRY FillSolidUnlocked(SURFOBJ *pso, PRECTL pRect, ULONG iColor)
     DibFunctionsForBitmapFormat[pso->iBitmapFormat].DIB_HLine(
       pso, pRect->left, pRect->right, y, iColor);
   }
-  MouseSafetyOnDrawEnd(pso);
-
   return TRUE;
 }
 
-BOOL APIENTRY FillSolid(SURFOBJ *pso, PRECTL pRect, ULONG iColor)
-{
-  SURFACE *psurf;
-  BOOL Result;
-  psurf = CONTAINING_RECORD(pso, SURFACE, SurfObj);
-  SURFACE_LockBitmapBits(psurf);
-  Result = FillSolidUnlocked(pso, pRect, iColor);
-  SURFACE_UnlockBitmapBits(psurf);
-  return Result;
-}
-
 BOOL APIENTRY
 EngPaintRgn(SURFOBJ *pso, CLIPOBJ *ClipRegion, ULONG iColor, MIX Mix,
             BRUSHOBJ *BrushObj, POINTL *BrushPoint)
@@ -87,7 +73,7 @@ EngPaintRgn(SURFOBJ *pso, CLIPOBJ *ClipRegion, ULONG iColor, MIX Mix,
 
     if (ClipRegion->iDComplexity == DC_RECT)
     {
-      FillSolidUnlocked(pso, &(ClipRegion->rclBounds), iColor);
+      FillSolid(pso, &(ClipRegion->rclBounds), iColor);
     } else {
 
       /* Enumerate all the rectangles and draw them */
@@ -96,7 +82,7 @@ EngPaintRgn(SURFOBJ *pso, CLIPOBJ *ClipRegion, ULONG iColor, MIX Mix,
       do {
         EnumMore = CLIPOBJ_bEnum(ClipRegion, sizeof(RectEnum), (PVOID) &RectEnum);
         for (i = 0; i < RectEnum.c; i++) {
-          FillSolidUnlocked(pso, RectEnum.arcl + i, iColor);
+          FillSolid(pso, RectEnum.arcl + i, iColor);
         }
       } while (EnumMore);
     }
@@ -141,11 +127,8 @@ IntEngPaint(IN SURFOBJ *pso,
   if((pso->iType!=STYPE_BITMAP) && (psurf->flHooks & HOOK_PAINT))
   {
     // Call the driver's DrvPaint
-    SURFACE_LockBitmapBits(psurf);
-
     ret = GDIDEVFUNCS(pso).Paint(
       pso, ClipRegion, Brush, BrushOrigin, Mix);
-    SURFACE_UnlockBitmapBits(psurf);
     return ret;
   }
   return EngPaint(pso, ClipRegion, Brush, BrushOrigin, Mix );
diff --git a/subsystems/win32/win32k/eng/pdevobj.c b/subsystems/win32/win32k/eng/pdevobj.c
index 35c3ebfd0ff..412bbbd8111 100644
--- a/subsystems/win32/win32k/eng/pdevobj.c
+++ b/subsystems/win32/win32k/eng/pdevobj.c
@@ -373,15 +373,12 @@ PDEVOBJ_bSwitchMode(
         goto leave;
     }
 
-    ASSERT(pSurface->BitsLock);
-
     /* 4. Get DirectDraw information */
     /* 5. Enable DirectDraw Not traced */
     /* 6. Copy old PDEV state to new PDEV instance */
 
     /* 7. Switch the PDEVs */
     PDEVOBJ_vSwitchPdev(ppdev, ppdevTmp);
-    ASSERT(ppdev->pSurface->BitsLock);
 
     /* 8. Disable DirectDraw */
 
@@ -395,7 +392,6 @@ leave:
     EngReleaseSemaphore(ghsemPDEV);
 
     DPRINT1("leave, ppdev = %p, pSurface = %p\n", ppdev, ppdev->pSurface);
-    ASSERT(ppdev->pSurface->BitsLock);
 
     return retval;
 }
diff --git a/subsystems/win32/win32k/eng/stretchblt.c b/subsystems/win32/win32k/eng/stretchblt.c
index 15aed608c71..ca4c22e0800 100644
--- a/subsystems/win32/win32k/eng/stretchblt.c
+++ b/subsystems/win32/win32k/eng/stretchblt.c
@@ -462,15 +462,10 @@ IntEngStretchBlt(SURFOBJ *psoDest,
 
     /* No success yet */
     ret = FALSE;
-    SURFACE_LockBitmapBits(psurfDest);
 
     if (UsesSource)
     {
         psurfSource = CONTAINING_RECORD(psoSource, SURFACE, SurfObj);
-        if (psoSource != psoDest)
-        {
-            SURFACE_LockBitmapBits(psurfSource);
-        }
     }
 
     /* Prepare color adjustment */
@@ -510,15 +505,6 @@ IntEngStretchBlt(SURFOBJ *psoDest,
                                ROP);
     }
 
-    if (UsesSource)
-    {
-        if (psoSource != psoDest)
-        {
-            SURFACE_UnlockBitmapBits(psurfSource);
-        }
-    }
-    SURFACE_UnlockBitmapBits(psurfDest);
-
     return ret;
 }
 
diff --git a/subsystems/win32/win32k/eng/surface.c b/subsystems/win32/win32k/eng/surface.c
index 5a85d1ac1b6..1ec760c28cd 100644
--- a/subsystems/win32/win32k/eng/surface.c
+++ b/subsystems/win32/win32k/eng/surface.c
@@ -136,42 +136,9 @@ SURFACE_Cleanup(PVOID ObjectBody)
         }
     }
 
-    if (NULL != psurf->BitsLock)
-    {
-        ExFreePoolWithTag(psurf->BitsLock, TAG_SURFACE);
-        psurf->BitsLock = NULL;
-    }
-
     return TRUE;
 }
 
-BOOL INTERNAL_CALL
-SURFACE_InitBitsLock(PSURFACE psurf)
-{
-    psurf->BitsLock = ExAllocatePoolWithTag(NonPagedPool,
-                          sizeof(FAST_MUTEX),
-                          TAG_SURFACE);
-    if (NULL == psurf->BitsLock)
-    {
-        return FALSE;
-    }
-
-    ExInitializeFastMutex(psurf->BitsLock);
-
-    return TRUE;
-}
-
-void INTERNAL_CALL
-SURFACE_CleanupBitsLock(PSURFACE psurf)
-{
-    if (NULL != psurf->BitsLock)
-    {
-        ExFreePoolWithTag(psurf->BitsLock, TAG_SURFACE);
-        psurf->BitsLock = NULL;
-    }
-}
-
-
 /*
  * @implemented
  */
@@ -348,12 +315,6 @@ IntCreateBitmap(IN SIZEL Size,
     }
     hbmp = psurf->BaseObject.hHmgr;
 
-    if (! SURFACE_InitBitsLock(psurf))
-    {
-        SURFACE_UnlockSurface(psurf);
-        SURFACE_FreeSurfaceByHandle(hbmp);
-        return 0;
-    }
     pso = &psurf->SurfObj;
 
     if (Format == BMF_4RLE)
@@ -436,7 +397,7 @@ IntCreateBitmap(IN SIZEL Size,
     psurf->flFlags = 0;
     psurf->dimension.cx = 0;
     psurf->dimension.cy = 0;
-    
+
     psurf->hSecure = NULL;
     psurf->hDIBSection = NULL;
 
@@ -526,7 +487,7 @@ SURFMEM_bCreateDib(IN PDEVBITMAPINFO BitmapInfo,
             /* The height times the bytes for each scanline */
             Size = BitmapInfo->Height * ScanLine;
         }
-        
+
         if (Size)
         {
             /* Check for allocation flag */
@@ -567,15 +528,6 @@ SURFMEM_bCreateDib(IN PDEVBITMAPINFO BitmapInfo,
         return NULL;
     }
 
-    /* Lock down the surface */
-    if (!SURFACE_InitBitsLock(psurf))
-    {
-        /* Bail out if that failed */
-        SURFACE_UnlockSurface(psurf);
-        SURFACE_FreeSurfaceByHandle(psurf->BaseObject.hHmgr);
-        return NULL;
-    }
-
     /* We should now have our surface object */
     pso = &psurf->SurfObj;
 
@@ -588,7 +540,7 @@ SURFMEM_bCreateDib(IN PDEVBITMAPINFO BitmapInfo,
     LocalSize.cx = BitmapInfo->Width;
     pso->sizlBitmap = LocalSize;
     pso->iType = STYPE_BITMAP;
-    
+
     /* Device-managed surface, no flags or dimension */
     pso->dhsurf = 0;
     pso->dhpdev = NULL;
@@ -599,10 +551,10 @@ SURFMEM_bCreateDib(IN PDEVBITMAPINFO BitmapInfo,
     psurf->hSecure = NULL;
     psurf->hDIBSection = NULL;
     psurf->flHooks = 0;
-    
+
     /* Set bits */
     pso->pvBits = Bits;
-    
+
     /* Check for bitmap type */
     if (!Compressed)
     {
@@ -626,7 +578,7 @@ SURFMEM_bCreateDib(IN PDEVBITMAPINFO BitmapInfo,
         /* Compressed surfaces don't have scanlines! */
         pso->lDelta = 0;
         pso->cjBits = BitmapInfo->Size;
-        
+
         /* Check for JPG or PNG */
         if ((BitmapInfo->Format != BMF_JPEG) && (BitmapInfo->Format != BMF_PNG))
         {
@@ -640,11 +592,11 @@ SURFMEM_bCreateDib(IN PDEVBITMAPINFO BitmapInfo,
             ASSERT(FALSE); // ENGDDI shouldn't be creating PNGs for drivers ;-)
         }
     }
-    
+
     /* Finally set the handle and uniq */
     pso->hsurf = (HSURF)psurf->BaseObject.hHmgr;
     pso->iUniq = 0;
-    
+
     /* Unlock and return the surface */
     SURFACE_UnlockSurface(psurf);
     return pso;
@@ -663,7 +615,7 @@ EngCreateBitmap(IN SIZEL Size,
 {
     SURFOBJ* Surface;
     DEVBITMAPINFO BitmapInfo;
-    
+
     /* Capture the parameters */
     BitmapInfo.Format = Format;
     BitmapInfo.Width = Size.cx;
@@ -700,7 +652,7 @@ EngCreateBitmap(IN SIZEL Size,
                 break;
         }
     }
-    
+
     /* Now create the surface */
     Surface = SURFMEM_bCreateDib(&BitmapInfo, Bits);
     if (!Surface) return 0;
@@ -731,12 +683,6 @@ EngCreateDeviceSurface(IN DHSURF dhsurf,
     hsurf = psurf->BaseObject.hHmgr;
     GDIOBJ_SetOwnership(hsurf, NULL);
 
-    if (!SURFACE_InitBitsLock(psurf))
-    {
-        SURFACE_UnlockSurface(psurf);
-        SURFACE_FreeSurfaceByHandle(hsurf);
-        return 0;
-    }
     pso = &psurf->SurfObj;
 
     pso->dhsurf = dhsurf;
diff --git a/subsystems/win32/win32k/eng/transblt.c b/subsystems/win32/win32k/eng/transblt.c
index 370d95b2734..c2cef09663a 100644
--- a/subsystems/win32/win32k/eng/transblt.c
+++ b/subsystems/win32/win32k/eng/transblt.c
@@ -284,12 +284,6 @@ IntEngTransparentBlt(SURFOBJ *psoDest,
     OutputRect = InputClippedRect;
   }
 
-  if(psoSource != psoDest)
-  {
-    SURFACE_LockBitmapBits(psurfSource);
-  }
-  SURFACE_LockBitmapBits(psurfDest);
-
   if(psurfDest->flHooks & HOOK_TRANSPARENTBLT)
   {
     Ret = GDIDEVFUNCS(psoDest).TransparentBlt(
@@ -305,12 +299,6 @@ IntEngTransparentBlt(SURFOBJ *psoDest,
                             &OutputRect, &InputRect, iTransColor, Reserved);
   }
 
-  SURFACE_UnlockBitmapBits(psurfDest);
-  if(psoSource != psoDest)
-  {
-    SURFACE_UnlockBitmapBits(psurfSource);
-  }
-
   return Ret;
 }
 
diff --git a/subsystems/win32/win32k/include/surface.h b/subsystems/win32/win32k/include/surface.h
index 3fe90540467..fb73ab632fb 100644
--- a/subsystems/win32/win32k/include/surface.h
+++ b/subsystems/win32/win32k/include/surface.h
@@ -26,7 +26,7 @@ typedef struct _SURFACE
                                to get width/height of bitmap, use
                                bitmap.bmWidth/bitmap.bmHeight for
                                that */
-  
+
   HDC         hDC; // Doc in "Undocumented Windows", page 546, seems to be supported with XP.
   ULONG       cRef;         // 0x064
   HPALETTE    hpalHint;
@@ -37,8 +37,6 @@ typedef struct _SURFACE
   DWORD       dwOffset;
 
   /* reactos specific */
-  PFAST_MUTEX BitsLock;     /* You need to hold this lock before you touch
-                               the actual bits in the bitmap */
   HPALETTE hDIBPalette;
   DWORD dsBitfields[3]; // hack, should probably use palette instead
   DWORD biClrUsed;
@@ -64,12 +62,7 @@ typedef struct _SURFACE
 #define  SURFACE_ShareUnlockSurface(pBMObj)  \
   GDIOBJ_ShareUnlockObjByPtr ((POBJ)pBMObj)
 
-#define SURFACE_LockBitmapBits(pBMObj) ExEnterCriticalRegionAndAcquireFastMutexUnsafe((pBMObj)->BitsLock)
-#define SURFACE_UnlockBitmapBits(pBMObj) ExReleaseFastMutexUnsafeAndLeaveCriticalRegion((pBMObj)->BitsLock)
-
 BOOL INTERNAL_CALL SURFACE_Cleanup(PVOID ObjectBody);
-BOOL INTERNAL_CALL SURFACE_InitBitsLock(SURFACE *pBMObj);
-void INTERNAL_CALL SURFACE_CleanupBitsLock(SURFACE *pBMObj);
 
 #define GDIDEV(SurfObj) ((PDEVOBJ *)((SurfObj)->hdev))
 #define GDIDEVFUNCS(SurfObj) ((PDEVOBJ *)((SurfObj)->hdev))->DriverFunctions