diff --git a/sdk/xtdk/amd64/artypes.h b/sdk/xtdk/amd64/artypes.h
index 59f7415..93cd15c 100644
--- a/sdk/xtdk/amd64/artypes.h
+++ b/sdk/xtdk/amd64/artypes.h
@@ -53,6 +53,14 @@
 /* Initial MXCSR control */
 #define INITIAL_MXCSR                                   0x1F80
 
+/* Page Attributes Table types */
+#define PAT_TYPE_STRONG_UC                              0ULL
+#define PAT_TYPE_USWC                                   1ULL
+#define PAT_TYPE_WT                                     4ULL
+#define PAT_TYPE_WP                                     5ULL
+#define PAT_TYPE_WB                                     6ULL
+#define PAT_TYPE_WEAK_UC                                7ULL
+
 /* Segment defintions */
 #define SEGMENT_CS                                      0x2E
 #define SEGMENT_DS                                      0x3E
@@ -66,6 +74,7 @@
 #define X86_MSR_SYSENTER_ESP                            0x00000175
 #define X86_MSR_SYSENTER_EIP                            0x00000176
 #define X86_MSR_POWER_CONTROL                           0x000001FC
+#define X86_MSR_PAT                                     0x00000277
 #define X86_MSR_EFER                                    0xC0000080
 #define X86_MSR_STAR                                    0xC0000081
 #define X86_MSR_LSTAR                                   0xC0000082
diff --git a/sdk/xtdk/amd64/xtstruct.h b/sdk/xtdk/amd64/xtstruct.h
index 155b213..84614e1 100644
--- a/sdk/xtdk/amd64/xtstruct.h
+++ b/sdk/xtdk/amd64/xtstruct.h
@@ -12,11 +12,11 @@
 #include <xtdefs.h>
 
 
-/* Architecture-related enumeration lists forward references */
+/* Architecture-specific enumeration lists forward references */
 typedef enum _CPUID_FEATURES CPUID_FEATURES, *PCPUID_FEATURES;
 typedef enum _CPUID_REQUESTS CPUID_REQUESTS, *PCPUID_REQUESTS;
 
-/* Architecture-related structures forward references */
+/* Architecture-specific structures forward references */
 typedef struct _CONTEXT CONTEXT, *PCONTEXT;
 typedef struct _CPUID_REGISTERS CPUID_REGISTERS, *PCPUID_REGISTERS;
 typedef struct _FLOATING_SAVE_AREA FLOATING_SAVE_AREA, *PFLOATING_SAVE_AREA;
diff --git a/sdk/xtdk/i686/xtstruct.h b/sdk/xtdk/i686/xtstruct.h
index 61fee73..a17e854 100644
--- a/sdk/xtdk/i686/xtstruct.h
+++ b/sdk/xtdk/i686/xtstruct.h
@@ -12,11 +12,11 @@
 #include <xtdefs.h>
 
 
-/* Architecture-related enumeration lists forward references */
+/* Architecture-specific enumeration lists forward references */
 typedef enum _CPUID_FEATURES CPUID_FEATURES, *PCPUID_FEATURES;
 typedef enum _CPUID_REQUESTS CPUID_REQUESTS, *PCPUID_REQUESTS;
 
-/* Architecture-related structures forward references */
+/* Architecture-specific structures forward references */
 typedef struct _CONTEXT CONTEXT, *PCONTEXT;
 typedef struct _CPUID_REGISTERS CPUID_REGISTERS, *PCPUID_REGISTERS;
 typedef struct _FLOATING_SAVE_AREA FLOATING_SAVE_AREA, *PFLOATING_SAVE_AREA;
diff --git a/xtoskrnl/ar/amd64/procsup.c b/xtoskrnl/ar/amd64/procsup.c
index a409093..bba02c4 100644
--- a/xtoskrnl/ar/amd64/procsup.c
+++ b/xtoskrnl/ar/amd64/procsup.c
@@ -209,6 +209,8 @@ XTAPI
 VOID
 ArpInitializeProcessorRegisters(VOID)
 {
+    ULONGLONG PatAttributes;
+
     /* Enable FXSAVE restore */
     ArWriteControlRegister(4, ArReadControlRegister(4) | CR4_FXSR);
 
@@ -247,6 +249,11 @@ ArpInitializeProcessorRegisters(VOID)
 
     /* Enable No-Execute (NXE) in EFER MSR */
     ArWriteModelSpecificRegister(X86_MSR_EFER, ArReadModelSpecificRegister(X86_MSR_EFER) | X86_MSR_EFER_NXE);
+
+    /* Initialize Page Attribute Table */
+    PatAttributes = (PAT_TYPE_WB << 0) | (PAT_TYPE_USWC << 8) | (PAT_TYPE_WEAK_UC << 16) | (PAT_TYPE_STRONG_UC << 24) |
+                    (PAT_TYPE_WB << 32) | (PAT_TYPE_USWC << 40) | (PAT_TYPE_WEAK_UC << 48) | (PAT_TYPE_STRONG_UC << 56);
+    ArWriteModelSpecificRegister(X86_MSR_PAT, PatAttributes);
 }
 
 /**