diff --git a/c/blake3_avx512_x86-64_windows_msvc.asm b/c/blake3_avx512_x86-64_windows_msvc.asm
index b19efba..97a7268 100644
--- a/c/blake3_avx512_x86-64_windows_msvc.asm
+++ b/c/blake3_avx512_x86-64_windows_msvc.asm
@@ -2421,8 +2421,8 @@ _blake3_compress_in_place_avx512 PROC
         movzx   r8d, r8b
         shl     rax, 32
         add     r8, rax
-        vmovq   xmm3, r9
-        vmovq   xmm4, r8
+        vmovd   xmm3, r9
+        vmovd   xmm4, r8
         vpunpcklqdq xmm3, xmm3, xmm4
         vmovaps xmm2, xmmword ptr [BLAKE3_IV]
         vmovups xmm8, xmmword ptr [rdx]
@@ -2516,8 +2516,8 @@ _blake3_compress_xof_avx512 PROC
         mov     r10, qword ptr [rsp+78H]
         shl     rax, 32
         add     r8, rax
-        vmovq   xmm3, r9
-        vmovq   xmm4, r8
+        vmovd   xmm3, r9
+        vmovd   xmm4, r8
         vpunpcklqdq xmm3, xmm3, xmm4
         vmovaps xmm2, xmmword ptr [BLAKE3_IV]
         vmovups xmm8, xmmword ptr [rdx]
diff --git a/c/blake3_sse2_x86-64_windows_msvc.asm b/c/blake3_sse2_x86-64_windows_msvc.asm
index 72deb7b..ff9bb4d 100644
--- a/c/blake3_sse2_x86-64_windows_msvc.asm
+++ b/c/blake3_sse2_x86-64_windows_msvc.asm
@@ -2054,8 +2054,8 @@ _blake3_compress_in_place_sse2 PROC
         movzx   r8d, r8b
         shl     rax, 32
         add     r8, rax
-        movq    xmm3, r9
-        movq    xmm4, r8
+        movd    xmm3, r9
+        movd    xmm4, r8
         punpcklqdq xmm3, xmm4
         movups  xmm4, xmmword ptr [rdx]
         movups  xmm5, xmmword ptr [rdx+10H]
@@ -2186,8 +2186,8 @@ _blake3_compress_xof_sse2 PROC
         mov     r10, qword ptr [rsp+0A8H]
         shl     rax, 32
         add     r8, rax
-        movq    xmm3, r9
-        movq    xmm4, r8
+        movd    xmm3, r9
+        movd    xmm4, r8
         punpcklqdq xmm3, xmm4
         movups  xmm4, xmmword ptr [rdx]
         movups  xmm5, xmmword ptr [rdx+10H]
diff --git a/c/blake3_sse41_x86-64_windows_msvc.asm b/c/blake3_sse41_x86-64_windows_msvc.asm
index 87001e4..8966c7b 100644
--- a/c/blake3_sse41_x86-64_windows_msvc.asm
+++ b/c/blake3_sse41_x86-64_windows_msvc.asm
@@ -1817,8 +1817,8 @@ _blake3_compress_in_place_sse41 PROC
         movzx   r8d, r8b
         shl     rax, 32
         add     r8, rax
-        movq    xmm3, r9
-        movq    xmm4, r8
+        movd    xmm3, r9
+        movd    xmm4, r8
         punpcklqdq xmm3, xmm4
         movups  xmm4, xmmword ptr [rdx]
         movups  xmm5, xmmword ptr [rdx+10H]
@@ -1938,8 +1938,8 @@ _blake3_compress_xof_sse41 PROC
         mov     r10, qword ptr [rsp+0A8H]
         shl     rax, 32
         add     r8, rax
-        movq    xmm3, r9
-        movq    xmm4, r8
+        movd    xmm3, r9
+        movd    xmm4, r8
         punpcklqdq xmm3, xmm4
         movups  xmm4, xmmword ptr [rdx]
         movups  xmm5, xmmword ptr [rdx+10H]