diff --git a/inc/blt.h b/inc/blt.h
index 641c4d3..1cd2a3f 100644
--- a/inc/blt.h
+++ b/inc/blt.h
@@ -5,6 +5,8 @@
 #include <windows.h>
 
 
+extern BOOL g_blt_use_avx;
+
 void blt_copy(
     unsigned char* dst,
     unsigned char* src,
diff --git a/inc/utils.h b/inc/utils.h
index 1f8c54a..98b51fc 100644
--- a/inc/utils.h
+++ b/inc/utils.h
@@ -5,6 +5,7 @@
 #include <windows.h>
 
 
+BOOL util_is_avx_supported();
 void util_limit_game_ticks();
 void util_update_bnet_pos(int newX, int newY);
 BOOL util_get_lowest_resolution(float ratio, SIZE* outRes, DWORD minWidth, DWORD minHeight, DWORD maxWidth, DWORD maxHeight);
diff --git a/src/blt.c b/src/blt.c
index dfd3912..846f034 100644
--- a/src/blt.c
+++ b/src/blt.c
@@ -4,13 +4,15 @@
 #include "blt.h"
 
 
+BOOL g_blt_use_avx;
+
 void blt_copy(
     unsigned char* dst,
     unsigned char* src,
     size_t size)
 {
 #ifdef __AVX__
-    if (size >= 1024 * 1536 && !((DWORD)dst % 32) && !((DWORD)src % 32))
+    if (size >= 1024 * 4096 && g_blt_use_avx && !((DWORD)dst % 32) && !((DWORD)src % 32))
     {
         while (size >= 256)
         {
@@ -45,7 +47,7 @@ void blt_copy(
         }
         return;
     }
-#endif
+#endif // __AVX__
 
     if (size >= 1024 * 100)
     {
diff --git a/src/dd.c b/src/dd.c
index d8fe35e..ff43bf5 100644
--- a/src/dd.c
+++ b/src/dd.c
@@ -1096,6 +1096,7 @@ HRESULT dd_CreateEx(GUID* lpGuid, LPVOID* lplpDD, REFIID iid, IUnknown* pUnkOute
 
         g_ddraw->render.sem = CreateSemaphore(NULL, 0, 1, NULL);
         g_ddraw->wine = GetProcAddress(GetModuleHandleA("ntdll.dll"), "wine_get_version") != 0;
+        g_blt_use_avx = util_is_avx_supported();
 
         cfg_load();
         g_ddraw->ref--;
diff --git a/src/utils.c b/src/utils.c
index 76fc56b..ed078c7 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -1,4 +1,5 @@
 #include <windows.h>
+#include <intrin.h>
 #include "ddraw.h"
 #include "debug.h"
 #include "dd.h"
@@ -10,6 +11,22 @@
 #include "config.h"
 
 
+BOOL util_is_avx_supported()
+{
+    unsigned int xcr0 = 0;
+
+#if defined(_MSC_VER)
+    xcr0 = (unsigned int)_xgetbv(_XCR_XFEATURE_ENABLED_MASK);
+#else
+    __asm__("xgetbv" : "=a" (xcr0) : "c" (0) : "%edx");
+#endif
+
+    int info[4] = { 0 };
+    __cpuid(info, 1);
+
+    return (info[2] & (1 << 27)) && (info[2] & (1 << 28)) && (xcr0 & 6);
+}
+
 void util_limit_game_ticks()
 {
     if (g_ddraw->ticks_limiter.htimer)