diff --git a/reactos/include/ndk/ketypes.h b/reactos/include/ndk/ketypes.h
index 3c6f5a954c6..f64d80cdc7c 100644
--- a/reactos/include/ndk/ketypes.h
+++ b/reactos/include/ndk/ketypes.h
@@ -541,17 +541,6 @@ typedef enum _KAPC_ENVIRONMENT
     InsertApcEnvironment
 } KAPC_ENVIRONMENT;
 
-//
-// CPU Cache Types
-//
-typedef enum _PROCESSOR_CACHE_TYPE
-{
-    CacheUnified,
-    CacheInstruction,
-    CacheData,
-    CacheTrace,
-} PROCESSOR_CACHE_TYPE;
-
 //
 // PRCB DPC Data
 //
@@ -572,18 +561,6 @@ typedef struct _PP_LOOKASIDE_LIST
     struct _GENERAL_LOOKASIDE *L;
 } PP_LOOKASIDE_LIST, *PPP_LOOKASIDE_LIST;
 
-//
-// CPU Cache Descriptor
-//
-typedef struct _CACHE_DESCRIPTOR
-{
-    UCHAR Level;
-    UCHAR Associativity;
-    USHORT LineSize;
-    ULONG Size;
-    PROCESSOR_CACHE_TYPE Type;
-} CACHE_DESCRIPTOR, *PCACHE_DESCRIPTOR;
-
 //
 // Architectural Types
 //