diff --git a/sdk/include/ndk/extypes.h b/sdk/include/ndk/extypes.h
index 9702cd2b6ea..6cc77cb1d7c 100644
--- a/sdk/include/ndk/extypes.h
+++ b/sdk/include/ndk/extypes.h
@@ -841,6 +841,14 @@ typedef struct _SYSTEM_PERFORMANCE_INFORMATION
     ULONG FirstLevelTbFills;
     ULONG SecondLevelTbFills;
     ULONG SystemCalls;
+#if (NTDDI_VERSION >= NTDDI_WIN7)
+    ULONGLONG CcTotalDirtyPages;
+    ULONGLONG CcDirtyPageThreshold;
+#endif
+#if (NTDDI_VERSION >= NTDDI_WIN8)
+    LONGLONG ResidentAvailablePages;
+    ULONGLONG SharedCommittedPages;
+#endif
 } SYSTEM_PERFORMANCE_INFORMATION, *PSYSTEM_PERFORMANCE_INFORMATION;
 
 // Class 3
diff --git a/sdk/include/psdk/winternl.h b/sdk/include/psdk/winternl.h
index c92543b2e31..af2301842b5 100644
--- a/sdk/include/psdk/winternl.h
+++ b/sdk/include/psdk/winternl.h
@@ -490,7 +490,13 @@ typedef struct _SYSTEM_BASIC_INFORMATION
 
 typedef struct _SYSTEM_PERFORMANCE_INFORMATION
 {
+#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
+    BYTE Reserved1[344];
+#elif (_WIN32_WINNT >= _WIN32_WINNT_WIN7)
+    BYTE Reserved1[328];
+#else
     BYTE Reserved1[312];
+#endif
 } SYSTEM_PERFORMANCE_INFORMATION, *PSYSTEM_PERFORMANCE_INFORMATION;
 
 typedef struct _SYSTEM_TIMEOFDAY_INFORMATION