diff --git a/reactos/include/psdk/ntddstor.h b/reactos/include/psdk/ntddstor.h
index c1955d6ab2a..900f539a002 100644
--- a/reactos/include/psdk/ntddstor.h
+++ b/reactos/include/psdk/ntddstor.h
@@ -617,6 +617,11 @@ typedef struct _STORAGE_PRIORITY_HINT_SUPPORT {
   ULONG SupportFlags;
 } STORAGE_PRIORITY_HINT_SUPPORT, *PSTORAGE_PRIORITY_HINT_SUPPORT;
 
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable:4200)
+#endif
+
 #if defined(_MSC_EXTENSIONS)
 
 typedef struct _STORAGE_MEDIA_SERIAL_NUMBER_DATA {
@@ -646,6 +651,10 @@ typedef struct _PERSISTENT_RESERVE_COMMAND {
 
 #endif /* defined(_MSC_EXTENSIONS) */
 
+#ifdef _MSC_VER
+#pragma warning(pop) /* disable:4200 */
+#endif
+
 typedef _Struct_size_bytes_(Size) struct _STORAGE_READ_CAPACITY {
   ULONG Version;
   ULONG Size;
diff --git a/reactos/include/psdk/ntdef.h b/reactos/include/psdk/ntdef.h
index fdedd22094d..e8eb3dd37a0 100644
--- a/reactos/include/psdk/ntdef.h
+++ b/reactos/include/psdk/ntdef.h
@@ -444,6 +444,10 @@ typedef enum {
   DEFAULT_COMPARTMENT_ID
 } COMPARTMENT_ID, *PCOMPARTMENT_ID;
 
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable:4201)
+#endif
 /* Used to store a non-float 8 byte aligned structure */
 typedef struct _QUAD
 {
@@ -491,6 +495,10 @@ typedef union _ULARGE_INTEGER {
     ULONGLONG QuadPart;
 } ULARGE_INTEGER, *PULARGE_INTEGER;
 
+#ifdef _MSC_VER
+#pragma warning(pop) /* disable:4201 */
+#endif
+
 /* Physical Addresses are always treated as 64-bit wide */
 typedef LARGE_INTEGER PHYSICAL_ADDRESS, *PPHYSICAL_ADDRESS;