diff --git a/reactos/ntoskrnl/mm/mminit.c b/reactos/ntoskrnl/mm/mminit.c
index 07f4ac6cb6b..bdd67eca134 100644
--- a/reactos/ntoskrnl/mm/mminit.c
+++ b/reactos/ntoskrnl/mm/mminit.c
@@ -73,6 +73,7 @@ VOID
 NTAPI
 MiShutdownMemoryManager(VOID)
 {
+#if 0
     ULONG PagesWritten;
     PETHREAD Thread;
 
@@ -100,6 +101,7 @@ MiShutdownMemoryManager(VOID)
        There will be no other chance to do this later, since filesystems
        are going to be shut down. */
     CcRosFlushDirtyPages(128, &PagesWritten);
+#endif
 }
 
 VOID
diff --git a/reactos/subsystems/win32/win32k/objects/gdiobj.c b/reactos/subsystems/win32/win32k/objects/gdiobj.c
index 06bb44109e9..b54a954240b 100644
--- a/reactos/subsystems/win32/win32k/objects/gdiobj.c
+++ b/reactos/subsystems/win32/win32k/objects/gdiobj.c
@@ -1318,16 +1318,6 @@ LockHandle:
             {
                 POBJ Object = Entry->KernelData;
 
-                /* HACK: Introduced very recently, probably by Timo's changes */
-                if ((ULONG_PTR)Object < 0x80000000)
-                {
-                    DPRINT1("KernelData is invalid (%p) for Entry %p!!!\n",
-                        Object, Entry);
-
-                    /* Hopefully someone is going to solve this issue */
-                    return;
-                }
-
                 PrevThread = Object->Tid;
                 if (Object->cExclusiveLock == 0 || PrevThread == Thread)
                 {