diff --git a/reactos/ntoskrnl/cc/copy.c b/reactos/ntoskrnl/cc/copy.c
index bcc24387efb..628f1dcbed8 100644
--- a/reactos/ntoskrnl/cc/copy.c
+++ b/reactos/ntoskrnl/cc/copy.c
@@ -29,6 +29,12 @@ ULONG CcFastReadResourceMiss;
 
 /* FUNCTIONS *****************************************************************/
 
+VOID
+NTAPI
+MiZeroPhysicalPage(
+    IN PFN_NUMBER PageFrameIndex
+);
+
 VOID
 NTAPI
 CcInitCacheZeroPage(VOID)
@@ -41,12 +47,7 @@ CcInitCacheZeroPage(VOID)
        DbgPrint("Can't allocate CcZeroPage.\n");
        KeBugCheck(CACHE_MANAGER);
    }
-   Status = MiZeroPage(CcZeroPage);
-   if (!NT_SUCCESS(Status))
-   {
-       DbgPrint("Can't zero out CcZeroPage.\n");
-       KeBugCheck(CACHE_MANAGER);
-   }
+   MiZeroPhysicalPage(CcZeroPage);
 }
 
 NTSTATUS
diff --git a/reactos/ntoskrnl/include/internal/mm.h b/reactos/ntoskrnl/include/internal/mm.h
index 346d9c08a54..e359749903f 100644
--- a/reactos/ntoskrnl/include/internal/mm.h
+++ b/reactos/ntoskrnl/include/internal/mm.h
@@ -1189,7 +1189,7 @@ MiUnmapPageInHyperSpace(IN PEPROCESS Process,
 
 PVOID
 NTAPI
-MiMapPagesToZeroInHyperSpace(IN PMMPFN *Pages,
+MiMapPagesToZeroInHyperSpace(IN PMMPFN Pfn1,
                              IN PFN_NUMBER NumberOfPages);
 
 VOID
@@ -1208,14 +1208,6 @@ MmCreateHyperspaceMapping(IN PFN_NUMBER Page)
     return MiMapPageInHyperSpace(HyperProcess, Page, &HyperIrql);
 }
 
-FORCEINLINE
-PVOID
-MiMapPageToZeroInHyperSpace(IN PFN_NUMBER Page)
-{
-    PMMPFN Pfn1 = MiGetPfnEntry(Page);
-    return MiMapPagesToZeroInHyperSpace(&Pfn1, 1);
-}
-
 #define MmDeleteHyperspaceMapping(x) MiUnmapPageInHyperSpace(HyperProcess, x, HyperIrql);
 
 /* i386/page.c *********************************************************/
diff --git a/reactos/ntoskrnl/mm/ARM3/hypermap.c b/reactos/ntoskrnl/mm/ARM3/hypermap.c
index fca9e03929b..cb5cb2f1059 100644
--- a/reactos/ntoskrnl/mm/ARM3/hypermap.c
+++ b/reactos/ntoskrnl/mm/ARM3/hypermap.c
@@ -112,18 +112,17 @@ MiUnmapPageInHyperSpace(IN PEPROCESS Process,
 
 PVOID
 NTAPI
-MiMapPagesToZeroInHyperSpace(IN PMMPFN *Pages,
+MiMapPagesToZeroInHyperSpace(IN PMMPFN Pfn1,
                              IN PFN_NUMBER NumberOfPages)
 {
     MMPTE TempPte;
     PMMPTE PointerPte;
     PFN_NUMBER Offset, PageFrameIndex;
-    PMMPFN Page;
 
     //
     // Sanity checks
     //
-    ASSERT(KeGetCurrentIrql() == DISPATCH_LEVEL);
+    ASSERT(KeGetCurrentIrql() == PASSIVE_LEVEL);
     ASSERT(NumberOfPages != 0);
     ASSERT(NumberOfPages <= (MI_ZERO_PTES - 1));
     
@@ -151,19 +150,17 @@ MiMapPagesToZeroInHyperSpace(IN PMMPFN *Pages,
     //
     PointerPte->u.Hard.PageFrameNumber = Offset - NumberOfPages;
    
-    //
-    // Write the current PTE
-    //
+    /* Choose the correct PTE to use, and which template */
     PointerPte += (Offset + 1);
     TempPte = ValidKernelPte;
     MI_MAKE_LOCAL_PAGE(&TempPte); // Hyperspace is local!
-    do
+    
+    /* Make sure the list isn't empty and loop it */
+    ASSERT(Pfn1 != (PVOID)LIST_HEAD);
+    while (Pfn1 != (PVOID)LIST_HEAD)
     {
-        //
-        // Get the first page entry and its PFN
-        //
-        Page = *Pages++;
-        PageFrameIndex = MiGetPfnEntryIndex(Page);
+        /* Get the page index for this PFN */
+        PageFrameIndex = MiGetPfnEntryIndex(Pfn1);
         
         //
         // Write the PFN
@@ -175,7 +172,10 @@ MiMapPagesToZeroInHyperSpace(IN PMMPFN *Pages,
         //
         PointerPte--;
         MI_WRITE_VALID_PTE(PointerPte, TempPte);
-    } while (--NumberOfPages);
+        
+        /* Move to the next PFN */
+        Pfn1 = (PMMPFN)Pfn1->u1.Flink;
+    }
     
     //
     // Return the address
@@ -193,7 +193,7 @@ MiUnmapPagesInZeroSpace(IN PVOID VirtualAddress,
     //
     // Sanity checks
     //
-    ASSERT(KeGetCurrentIrql() == DISPATCH_LEVEL);
+    ASSERT(KeGetCurrentIrql() == PASSIVE_LEVEL);
     ASSERT (NumberOfPages != 0);
     ASSERT (NumberOfPages <= (MI_ZERO_PTES - 1));
     
diff --git a/reactos/ntoskrnl/mm/ARM3/pfnlist.c b/reactos/ntoskrnl/mm/ARM3/pfnlist.c
index 659adccedd0..025aa7cddf4 100644
--- a/reactos/ntoskrnl/mm/ARM3/pfnlist.c
+++ b/reactos/ntoskrnl/mm/ARM3/pfnlist.c
@@ -66,6 +66,7 @@ MiZeroPhysicalPage(IN PFN_NUMBER PageFrameIndex)
 
     /* Map in hyperspace, then wipe it using XMMI or MEMSET */
     VirtualAddress = MiMapPageInHyperSpace(Process, PageFrameIndex, &OldIrql);
+    ASSERT(VirtualAddress);
     KeZeroPages(VirtualAddress, PAGE_SIZE);
     MiUnmapPageInHyperSpace(Process, VirtualAddress, OldIrql);
 }
diff --git a/reactos/ntoskrnl/mm/balance.c b/reactos/ntoskrnl/mm/balance.c
index 555c7a666db..9ce2dd13e57 100644
--- a/reactos/ntoskrnl/mm/balance.c
+++ b/reactos/ntoskrnl/mm/balance.c
@@ -99,6 +99,12 @@ MmInitializeMemoryConsumer(ULONG Consumer,
    MiMemoryConsumers[Consumer].Trim = Trim;
 }
 
+VOID
+NTAPI
+MiZeroPhysicalPage(
+    IN PFN_NUMBER PageFrameIndex
+);
+
 NTSTATUS
 NTAPI
 MmReleasePageMemoryConsumer(ULONG Consumer, PFN_NUMBER Page)
@@ -131,7 +137,7 @@ MmReleasePageMemoryConsumer(ULONG Consumer, PFN_NUMBER Page)
          Request = CONTAINING_RECORD(Entry, MM_ALLOCATION_REQUEST, ListEntry);
          KeReleaseSpinLock(&AllocationListLock, OldIrql);
          if(Consumer == MC_USER) MmRemoveLRUUserPage(Page);
-         MiZeroPage(Page);
+         MiZeroPhysicalPage(Page);
          Request->Page = Page;
          KeSetEvent(&Request->Event, IO_NO_INCREMENT, FALSE);
       }
diff --git a/reactos/ntoskrnl/mm/freelist.c b/reactos/ntoskrnl/mm/freelist.c
index 513a1626335..aea3f0e35f8 100644
--- a/reactos/ntoskrnl/mm/freelist.c
+++ b/reactos/ntoskrnl/mm/freelist.c
@@ -360,7 +360,7 @@ MiAllocatePagesForMdl(IN PHYSICAL_ADDRESS LowAddress,
         //
         Pfn1 = MiGetPfnEntry(Page);
         ASSERT(Pfn1);
-        if (Pfn1->u3.e1.PageLocation != ZeroedPageList) MiZeroPage(Page);
+        if (Pfn1->u3.e1.PageLocation != ZeroedPageList) MiZeroPhysicalPage(Page);
         Pfn1->u3.e1.PageLocation = ActiveAndValid;
     }
     
@@ -625,25 +625,6 @@ MmAllocPage(ULONG Type)
    return PfnOffset;
 }
 
-NTSTATUS
-NTAPI
-MiZeroPage(PFN_NUMBER Page)
-{
-    KIRQL Irql;
-    PVOID TempAddress;
-    
-    Irql = KeRaiseIrqlToDpcLevel();
-    TempAddress = MiMapPageToZeroInHyperSpace(Page);
-    if (TempAddress == NULL)
-    {
-        return(STATUS_NO_MEMORY);
-    }
-    memset(TempAddress, 0, PAGE_SIZE);
-    MiUnmapPagesInZeroSpace(TempAddress, 1);
-    KeLowerIrql(Irql);
-    return(STATUS_SUCCESS);
-}
-
 NTSTATUS
 NTAPI
 MmZeroPageThreadMain(PVOID Ignored)
@@ -653,6 +634,7 @@ MmZeroPageThreadMain(PVOID Ignored)
    PPHYSICAL_PAGE PageDescriptor;
    PFN_NUMBER Pfn;
    ULONG Count;
+   PVOID ZeroAddress;
 
    /* Free initial kernel memory */
    //MiFreeInitMemory();
@@ -679,22 +661,19 @@ MmZeroPageThreadMain(PVOID Ignored)
       while (MmFreePageListHead.Total)
       {
          PageDescriptor = MiRemoveHeadList(&MmFreePageListHead);
-         /* We set the page to used, because MmCreateVirtualMapping failed with unused pages */
-         KeReleaseQueuedSpinLock(LockQueuePfnLock, oldIrql);
          Pfn = MiGetPfnEntryIndex(PageDescriptor);
-         Status = MiZeroPage(Pfn);
+         KeReleaseQueuedSpinLock(LockQueuePfnLock, oldIrql);
+         
+         PageDescriptor->u1.Flink = LIST_HEAD;
+         ZeroAddress = MiMapPagesToZeroInHyperSpace(PageDescriptor, 1);
+         ASSERT(ZeroAddress);
+         RtlZeroMemory(ZeroAddress, PAGE_SIZE);
+         MiUnmapPagesInZeroSpace(ZeroAddress, 1);
 
          oldIrql = KeAcquireQueuedSpinLock(LockQueuePfnLock);
-         if (NT_SUCCESS(Status))
-         {
-            MiInsertZeroListAtBack(Pfn);
-            Count++;
-         }
-         else
-         {
-            MiInsertInListTail(&MmFreePageListHead, PageDescriptor);
-            PageDescriptor->u3.e1.PageLocation = FreePageList;
-         }
+        
+         MiInsertZeroListAtBack(Pfn);
+         Count++;
 
       }
       DPRINT("Zeroed %d pages.\n", Count);