diff --git a/reactos/ntoskrnl/io/rawfs.c b/reactos/ntoskrnl/io/rawfs.c
index 8a44f563bdd..a5b54ce86a5 100755
--- a/reactos/ntoskrnl/io/rawfs.c
+++ b/reactos/ntoskrnl/io/rawfs.c
@@ -1,4 +1,4 @@
-/* $Id: rawfs.c,v 1.7 2003/11/27 00:50:22 gdalsnes Exp $
+/* $Id: rawfs.c,v 1.8 2003/12/14 17:56:22 hbirr Exp $
  *
  * COPYRIGHT:       See COPYING in the top level directory
  * PROJECT:         ReactOS kernel
@@ -526,7 +526,7 @@ RawFsWrite(IN PRAWFS_IRP_CONTEXT IrpContext)
 static NTSTATUS
 RawFsMount(IN PRAWFS_IRP_CONTEXT IrpContext)
 {
-  PRAWFS_GLOBAL_DATA GlobalData;
+  PRAWFS_GLOBAL_DATA GlobalData = NULL;
   PDEVICE_OBJECT DeviceObject = NULL;
   PRAWFS_DEVICE_EXTENSION DeviceExt = NULL;
   PRAWFS_FCB VolumeFcb = NULL;
diff --git a/reactos/ntoskrnl/io/xhaldrv.c b/reactos/ntoskrnl/io/xhaldrv.c
index 345d38f8fd9..75c6013c5d7 100644
--- a/reactos/ntoskrnl/io/xhaldrv.c
+++ b/reactos/ntoskrnl/io/xhaldrv.c
@@ -1,4 +1,4 @@
-/* $Id: xhaldrv.c,v 1.40 2003/08/25 11:57:22 ekohl Exp $
+/* $Id: xhaldrv.c,v 1.41 2003/12/14 17:56:22 hbirr Exp $
  *
  * COPYRIGHT:       See COPYING in the top level directory
  * PROJECT:         ReactOS kernel
@@ -686,7 +686,7 @@ xHalIoReadPartitionTable(PDEVICE_OBJECT DeviceObject,
 {
   LARGE_INTEGER RealPartitionOffset;
   ULONGLONG PartitionOffset;
-  ULONGLONG nextPartitionOffset;
+  ULONGLONG nextPartitionOffset = 0LL;
   ULONGLONG containerOffset;
   NTSTATUS Status;
   PPARTITION_SECTOR PartitionSector;
@@ -926,7 +926,7 @@ xHalIoSetPartitionInformation(IN PDEVICE_OBJECT DeviceObject,
   PPARTITION_SECTOR PartitionSector;
   LARGE_INTEGER RealPartitionOffset;
   ULONGLONG PartitionOffset;
-  ULONGLONG nextPartitionOffset;
+  ULONGLONG nextPartitionOffset = 0LL;
   ULONGLONG containerOffset;
   NTSTATUS Status;
   ULONG i;
@@ -1105,7 +1105,7 @@ xHalIoWritePartitionTable(IN PDEVICE_OBJECT DeviceObject,
   PPARTITION_SECTOR PartitionSector;
   LARGE_INTEGER RealPartitionOffset;
   ULONGLONG PartitionOffset;
-  ULONGLONG NextPartitionOffset;
+  ULONGLONG NextPartitionOffset = 0LL;
   ULONGLONG ContainerOffset;
   BOOLEAN ContainerEntry;
   DISK_MANAGER DiskManager;
diff --git a/reactos/ntoskrnl/mm/npool.c b/reactos/ntoskrnl/mm/npool.c
index 4f2ea6eda8c..b96b02033cf 100644
--- a/reactos/ntoskrnl/mm/npool.c
+++ b/reactos/ntoskrnl/mm/npool.c
@@ -1,4 +1,4 @@
-/* $Id: npool.c,v 1.78 2003/12/13 21:11:53 gvg Exp $
+/* $Id: npool.c,v 1.79 2003/12/14 17:56:23 hbirr Exp $
  *
  * COPYRIGHT:    See COPYING in the top level directory
  * PROJECT:      ReactOS kernel
@@ -253,7 +253,7 @@ void avl_insert (PNODE * root, PNODE n, int (*compare)(PNODE, PNODE))
   PNODE y;     /* Top node to update balance factor, and parent. */
   PNODE p, q;  /* Iterator, and parent. */
   PNODE w;     /* New root of rebalanced subtree. */
-  int dir;     /* Direction to descend. */
+  int dir = 0; /* Direction to descend. */
 
   n->link[0] = n->link[1] = n->parent = NULL;
   n->balance = 0;
@@ -805,8 +805,8 @@ MiDebugDumpNonPagedPoolStats(BOOLEAN NewOnly)
   ULONG i;
   BLOCK_HDR* current;
   ULONG CurrentTag;
-  ULONG CurrentNrBlocks;
-  ULONG CurrentSize;
+  ULONG CurrentNrBlocks = 0;
+  ULONG CurrentSize = 0;
   ULONG TotalBlocks;
   ULONG TotalSize;
   ULONG Size;
@@ -1277,7 +1277,7 @@ grow_block(BLOCK_HDR* blk, PVOID end)
 static BLOCK_HDR* get_block(unsigned int size, unsigned long alignment)
 {
    BLOCK_HDR *blk, *current, *previous = NULL, *next = NULL, *best = NULL;
-   ULONG previous_size, current_size, next_size, new_size;
+   ULONG previous_size = 0, current_size, next_size = 0, new_size;
    PVOID end;
    PVOID addr, aligned_addr;
    PNODE p;
diff --git a/reactos/ntoskrnl/mm/section.c b/reactos/ntoskrnl/mm/section.c
index fe7a2ed12bd..a17999da1d2 100644
--- a/reactos/ntoskrnl/mm/section.c
+++ b/reactos/ntoskrnl/mm/section.c
@@ -16,7 +16,7 @@
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
-/* $Id: section.c,v 1.135 2003/11/24 14:51:46 ekohl Exp $
+/* $Id: section.c,v 1.136 2003/12/14 17:56:22 hbirr Exp $
  *
  * PROJECT:         ReactOS kernel
  * FILE:            ntoskrnl/mm/section.c
@@ -3449,7 +3449,7 @@ MmUnmapViewOfSection(PEPROCESS Process,
        ULONG NrSegments;
        PMM_IMAGE_SECTION_OBJECT ImageSectionObject;
        PMM_SECTION_SEGMENT SectionSegments;
-       PVOID ImageBaseAddress;
+       PVOID ImageBaseAddress = 0;
        PMM_SECTION_SEGMENT Segment;
    
        Segment = MemoryArea->Data.SectionData.Segment;