diff --git a/imperative/python/test/unit/distributed/test_distributed.py b/imperative/python/test/unit/distributed/test_distributed.py
index 29eed7ef8ff87e9bd7242f683882c9762042b266..26c732b8d55447e10337d851a94ff16f698e2372 100644
--- a/imperative/python/test/unit/distributed/test_distributed.py
+++ b/imperative/python/test/unit/distributed/test_distributed.py
@@ -41,7 +41,7 @@ def _assert_q_val(q, val):
     platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
 )
 @pytest.mark.skipif(
-    platform.system() == "Windows", reason="do not imp GPU mode at Windows now"
+    platform.system() == "Windows", reason="windows disable MGB_ENABLE_OPR_MM"
 )
 @pytest.mark.skipif(get_device_count_by_fork("gpu") < 2, reason="need more gpu device")
 @pytest.mark.isolated_distributed
@@ -85,7 +85,7 @@ def test_init_process_group():
     platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
 )
 @pytest.mark.skipif(
-    platform.system() == "Windows", reason="do not imp GPU mode at Windows now"
+    platform.system() == "Windows", reason="windows disable MGB_ENABLE_OPR_MM"
 )
 @pytest.mark.skipif(get_device_count_by_fork("gpu") < 2, reason="need more gpu device")
 @pytest.mark.isolated_distributed
@@ -119,7 +119,7 @@ def test_new_group():
     platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
 )
 @pytest.mark.skipif(
-    platform.system() == "Windows", reason="do not imp GPU mode at Windows now"
+    platform.system() == "Windows", reason="windows disable MGB_ENABLE_OPR_MM"
 )
 @pytest.mark.skipif(get_device_count_by_fork("gpu") < 2, reason="need more gpu device")
 @pytest.mark.isolated_distributed
@@ -155,7 +155,7 @@ def test_group_barrier():
     platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
 )
 @pytest.mark.skipif(
-    platform.system() == "Windows", reason="do not imp GPU mode at Windows now"
+    platform.system() == "Windows", reason="windows disable MGB_ENABLE_OPR_MM"
 )
 @pytest.mark.skipif(get_device_count_by_fork("gpu") < 2, reason="need more gpu device")
 @pytest.mark.isolated_distributed
diff --git a/imperative/python/test/unit/functional/test_tensor.py b/imperative/python/test/unit/functional/test_tensor.py
index 9fc847b0f1583232bd9204f31300ccaadb1b6423..1e8fbc55840450f19a15a74e7a145e24cb00cee1 100644
--- a/imperative/python/test/unit/functional/test_tensor.py
+++ b/imperative/python/test/unit/functional/test_tensor.py
@@ -338,9 +338,6 @@ def copy_test(dst, src):
 @pytest.mark.skipif(
     platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
 )
-@pytest.mark.skipif(
-    platform.system() == "Windows", reason="do not imp GPU mode at Windows now"
-)
 @pytest.mark.skipif(get_device_count_by_fork("gpu") == 0, reason="CUDA is disabled")
 def test_copy_h2d():
     copy_test("cpu0", "gpu0")
@@ -349,9 +346,6 @@ def test_copy_h2d():
 @pytest.mark.skipif(
     platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
 )
-@pytest.mark.skipif(
-    platform.system() == "Windows", reason="do not imp GPU mode at Windows now"
-)
 @pytest.mark.skipif(get_device_count_by_fork("gpu") == 0, reason="CUDA is disabled")
 def test_copy_d2h():
     copy_test("gpu0", "cpu0")
@@ -360,9 +354,6 @@ def test_copy_d2h():
 @pytest.mark.skipif(
     platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
 )
-@pytest.mark.skipif(
-    platform.system() == "Windows", reason="do not imp GPU mode at Windows now"
-)
 @pytest.mark.skipif(get_device_count_by_fork("gpu") < 2, reason="need more gpu device")
 def test_copy_d2d():
     copy_test("gpu0", "gpu1")
diff --git a/imperative/python/test/unit/module/test_batchnorm.py b/imperative/python/test/unit/module/test_batchnorm.py
index fe1e2cbb9387fa3edb017271271dbf43ba913d52..f9bef4d2561f341ed625115f89eee8e22f88a599 100644
--- a/imperative/python/test/unit/module/test_batchnorm.py
+++ b/imperative/python/test/unit/module/test_batchnorm.py
@@ -26,7 +26,7 @@ _assert_allclose = functools.partial(np.testing.assert_allclose, atol=5e-6, rtol
     platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
 )
 @pytest.mark.skipif(
-    platform.system() == "Windows", reason="do not imp GPU mode at Windows now"
+    platform.system() == "Windows", reason="windows disable MGB_ENABLE_OPR_MM"
 )
 @pytest.mark.isolated_distributed
 def test_syncbn():
@@ -143,9 +143,6 @@ def test_batchnorm():
 @pytest.mark.skipif(
     platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
 )
-@pytest.mark.skipif(
-    platform.system() == "Windows", reason="do not imp GPU mode at Windows now"
-)
 @pytest.mark.isolated_distributed
 def test_syncbn1d():
     nr_chan = 8
@@ -237,9 +234,6 @@ def test_batchnorm2d():
 @pytest.mark.skipif(
     platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
 )
-@pytest.mark.skipif(
-    platform.system() == "Windows", reason="do not imp GPU mode at Windows now"
-)
 @pytest.mark.isolated_distributed
 def test_syncbn2d():
     nr_chan = 8
@@ -311,9 +305,6 @@ def test_batchnorm_no_stats():
 @pytest.mark.skipif(
     platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
 )
-@pytest.mark.skipif(
-    platform.system() == "Windows", reason="do not imp GPU mode at Windows now"
-)
 @pytest.mark.isolated_distributed
 def test_syncbn_no_stats():
     nr_chan = 8
@@ -363,9 +354,6 @@ def test_batchnorm2d_no_stats():
 @pytest.mark.skipif(
     platform.system() == "Darwin", reason="do not imp GPU mode at macos now"
 )
-@pytest.mark.skipif(
-    platform.system() == "Windows", reason="do not imp GPU mode at Windows now"
-)
 @pytest.mark.isolated_distributed
 def test_syncbn2d_no_stats():
     nr_chan = 8