diff --git a/ci/build_windows.py b/ci/build_windows.py
index 56769f7cdaf0..427e50f1cc0c 100755
--- a/ci/build_windows.py
+++ b/ci/build_windows.py
@@ -216,11 +216,11 @@ def main():
     if system == 'Windows':
         logging.info("Detected Windows platform")
         if 'OpenBLAS_HOME' not in os.environ:
-            os.environ["OpenBLAS_HOME"] = "C:\\mxnet\\openblas"
+            os.environ["OpenBLAS_HOME"] = "C:\\Program Files\\OpenBLAS-v0.2.19"
         if 'OpenCV_DIR' not in os.environ:
-            os.environ["OpenCV_DIR"] = "C:\\mxnet\\opencv_vc14"
+            os.environ["OpenCV_DIR"] = "C:\\Program Files\\OpenCV-v3.4.1\\build"
         if 'CUDA_PATH' not in os.environ:
-            os.environ["CUDA_PATH"] = "C:\\CUDA\\v8.0"
+            os.environ["CUDA_PATH"] = "C:\\Program Files\\NVIDIA GPU Computing Toolkit\\CUDA\\v9.2"
         windows_build(args)
 
     elif system == 'Linux' or system == 'Darwin':
diff --git a/ci/jenkins/Jenkins_steps.groovy b/ci/jenkins/Jenkins_steps.groovy
index 81b573a97b24..73c60290d32b 100644
--- a/ci/jenkins/Jenkins_steps.groovy
+++ b/ci/jenkins/Jenkins_steps.groovy
@@ -450,13 +450,11 @@ def compile_unix_amalgamation() {
 def compile_windows_cpu() {
     return ['Build CPU windows':{
       node(NODE_WINDOWS_CPU) {
-        timeout(time: max_time, unit: 'MINUTES') {
-          ws('workspace/build-cpu') {
-            withEnv(['OpenBLAS_HOME=C:\\mxnet\\openblas', 'OpenCV_DIR=C:\\mxnet\\opencv_vc14', 'CUDA_PATH=C:\\CUDA\\v8.0']) {
-              utils.init_git_win()
-              powershell 'python ci/build_windows.py -f WIN_CPU'
-              stash includes: 'windows_package.7z', name: 'windows_package_cpu'
-            }
+        ws('workspace/build-cpu') {
+          timeout(time: max_time, unit: 'MINUTES') {
+            utils.init_git_win()
+            powershell 'py -3 ci/build_windows.py -f WIN_CPU'
+            stash includes: 'windows_package.7z', name: 'windows_package_cpu'
           }
         }
       }
@@ -466,13 +464,11 @@ def compile_windows_cpu() {
 def compile_windows_gpu() {
     return ['Build GPU windows':{
       node(NODE_WINDOWS_CPU) {
-        timeout(time: max_time, unit: 'MINUTES') {
-          ws('workspace/build-gpu') {
-            withEnv(['OpenBLAS_HOME=C:\\mxnet\\openblas', 'OpenCV_DIR=C:\\mxnet\\opencv_vc14', 'CUDA_PATH=C:\\CUDA\\v8.0']) {
+        ws('workspace/build-gpu') {
+          timeout(time: max_time, unit: 'MINUTES') {
               utils.init_git_win()
-              powershell 'python ci/build_windows.py -f WIN_GPU'
+              powershell 'py -3 ci/build_windows.py -f WIN_GPU'
               stash includes: 'windows_package.7z', name: 'windows_package_gpu'
-            }
           }
         }
       }
@@ -482,13 +478,11 @@ def compile_windows_gpu() {
 def compile_windows_gpu_mkldnn() {
     return ['Build GPU MKLDNN windows':{
       node(NODE_WINDOWS_CPU) {
-        timeout(time: max_time, unit: 'MINUTES') {
-          ws('workspace/build-gpu') {
-            withEnv(['OpenBLAS_HOME=C:\\mxnet\\openblas', 'OpenCV_DIR=C:\\mxnet\\opencv_vc14', 'CUDA_PATH=C:\\CUDA\\v8.0','BUILD_NAME=vc14_gpu_mkldnn']) {
-              utils.init_git_win()
-              powershell 'python ci/build_windows.py -f WIN_GPU_MKLDNN'
-              stash includes: 'windows_package.7z', name: 'windows_package_gpu_mkldnn'
-            }
+        ws('workspace/build-gpu') {
+          timeout(time: max_time, unit: 'MINUTES') {
+            utils.init_git_win()
+            powershell 'py -3 ci/build_windows.py -f WIN_GPU_MKLDNN'
+            stash includes: 'windows_package.7z', name: 'windows_package_gpu_mkldnn'
           }
         }
       }
diff --git a/ci/jenkins/Jenkinsfile_windows_cpu b/ci/jenkins/Jenkinsfile_windows_cpu
index 9e70df38dca5..243d2a40fe54 100644
--- a/ci/jenkins/Jenkinsfile_windows_cpu
+++ b/ci/jenkins/Jenkinsfile_windows_cpu
@@ -35,12 +35,14 @@ utils.main_wrapper(
 core_logic: {
   utils.parallel_stage('Build', [
     custom_steps.compile_windows_cpu()
-  ]) 
+  ])
 
   utils.parallel_stage('Tests', [
     custom_steps.test_windows_python2_cpu(),
-    custom_steps.test_windows_python3_cpu()
-  ]) 
+    custom_steps.test_windows_python3_cpu(),
+    custom_steps.test_windows_julia07_cpu(),
+    custom_steps.test_windows_julia10_cpu()
+  ])
 }
 ,
 failure_handler: {
diff --git a/ci/windows/test_py2_cpu.ps1 b/ci/windows/test_py2_cpu.ps1
index 702a2db90ed7..4cef0ea84c20 100644
--- a/ci/windows/test_py2_cpu.ps1
+++ b/ci/windows/test_py2_cpu.ps1
@@ -19,8 +19,10 @@
 $env:MXNET_LIBRARY_PATH=join-path $pwd.Path windows_package\lib\libmxnet.dll
 $env:PYTHONPATH=join-path $pwd.Path windows_package\python
 $env:MXNET_STORAGE_FALLBACK_LOG_VERBOSE=0
-c:\Anaconda3\envs\py2\Scripts\pip install -r tests\requirements.txt
-c:\Anaconda3\envs\py2\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_unittest.xml tests\python\unittest
+$env:MXNET_HOME=[io.path]::combine($PSScriptRoot, 'mxnet_home')
+
+C:\Python27\Scripts\pip install -r tests\requirements.txt
+C:\Python27\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_unittest.xml tests\python\unittest
 if (! $?) { Throw ("Error running unittest") }
-c:\Anaconda3\envs\py2\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_train.xml tests\python\train
+C:\Python27\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_train.xml tests\python\train
 if (! $?) { Throw ("Error running train tests") }
diff --git a/ci/windows/test_py2_gpu.ps1 b/ci/windows/test_py2_gpu.ps1
index 0cf2717fa208..a113ee003274 100644
--- a/ci/windows/test_py2_gpu.ps1
+++ b/ci/windows/test_py2_gpu.ps1
@@ -19,12 +19,14 @@
 $env:MXNET_LIBRARY_PATH=join-path $pwd.Path windows_package\lib\libmxnet.dll
 $env:PYTHONPATH=join-path $pwd.Path windows_package\python
 $env:MXNET_STORAGE_FALLBACK_LOG_VERBOSE=0
-c:\Anaconda3\envs\py2\Scripts\pip install -r tests\requirements.txt
-c:\Anaconda3\envs\py2\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_unittest.xml tests\python\unittest
+$env:MXNET_HOME=[io.path]::combine($PSScriptRoot, 'mxnet_home')
+
+C:\Python27\Scripts\pip install -r tests\requirements.txt
+C:\Python27\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_unittest.xml tests\python\unittest
 if (! $?) { Throw ("Error running unittest") }
-c:\Anaconda3\envs\py2\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_operator.xml tests\python\gpu\test_operator_gpu.py
+C:\Python27\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_operator.xml tests\python\gpu\test_operator_gpu.py
 if (! $?) { Throw ("Error running tests") }
-c:\Anaconda3\envs\py2\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_forward.xml tests\python\gpu\test_forward.py
+C:\Python27\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_forward.xml tests\python\gpu\test_forward.py
 if (! $?) { Throw ("Error running tests") }
-c:\Anaconda3\envs\py2\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error tests\python\train
+C:\Python27\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error tests\python\train
 if (! $?) { Throw ("Error running tests") }
diff --git a/ci/windows/test_py3_cpu.ps1 b/ci/windows/test_py3_cpu.ps1
index a7774a63dd86..9d838c26228d 100644
--- a/ci/windows/test_py3_cpu.ps1
+++ b/ci/windows/test_py3_cpu.ps1
@@ -19,8 +19,10 @@
 $env:MXNET_LIBRARY_PATH=join-path $pwd.Path windows_package\lib\libmxnet.dll
 $env:PYTHONPATH=join-path $pwd.Path windows_package\python
 $env:MXNET_STORAGE_FALLBACK_LOG_VERBOSE=0
-c:\Anaconda3\envs\py3\Scripts\pip install -r tests\requirements.txt
-c:\Anaconda3\envs\py3\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_unittest.xml tests\python\unittest
+$env:MXNET_HOME=[io.path]::combine($PSScriptRoot, 'mxnet_home')
+
+C:\Python37\Scripts\pip install -r tests\requirements.txt
+C:\Python37\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_unittest.xml tests\python\unittest
 if (! $?) { Throw ("Error running unittest") }
-c:\Anaconda3\envs\py3\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_train.xml tests\python\train
+C:\Python37\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_train.xml tests\python\train
 if (! $?) { Throw ("Error running train tests") }
diff --git a/ci/windows/test_py3_gpu.ps1 b/ci/windows/test_py3_gpu.ps1
index f9955ef6473f..5492538174cf 100644
--- a/ci/windows/test_py3_gpu.ps1
+++ b/ci/windows/test_py3_gpu.ps1
@@ -19,12 +19,14 @@
 $env:MXNET_LIBRARY_PATH=join-path $pwd.Path windows_package\lib\libmxnet.dll
 $env:PYTHONPATH=join-path $pwd.Path windows_package\python
 $env:MXNET_STORAGE_FALLBACK_LOG_VERBOSE=0
-c:\Anaconda3\envs\py3\Scripts\pip install -r tests\requirements.txt
-c:\Anaconda3\envs\py3\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_unittest.xml tests\python\unittest
+$env:MXNET_HOME=[io.path]::combine($PSScriptRoot, 'mxnet_home')
+
+C:\Python37\Scripts\pip install -r tests\requirements.txt
+C:\Python37\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_unittest.xml tests\python\unittest
 if (! $?) { Throw ("Error running unittest") }
-c:\Anaconda3\envs\py3\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_operator.xml tests\python\gpu\test_operator_gpu.py
+C:\Python37\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_operator.xml tests\python\gpu\test_operator_gpu.py
 if (! $?) { Throw ("Error running tests") }
-c:\Anaconda3\envs\py3\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_forward.xml tests\python\gpu\test_forward.py
+C:\Python37\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_forward.xml tests\python\gpu\test_forward.py
 if (! $?) { Throw ("Error running tests") }
-c:\Anaconda3\envs\py3\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_train.xml tests\python\train
+C:\Python37\python.exe -m nose -v --with-timer --timer-ok 1 --timer-warning 15 --timer-filter warning,error --with-xunit --xunit-file nosetests_train.xml tests\python\train
 if (! $?) { Throw ("Error running tests") }
diff --git a/tests/python/gpu/test_operator_gpu.py b/tests/python/gpu/test_operator_gpu.py
index 7a7c6f69dd77..842898302a49 100644
--- a/tests/python/gpu/test_operator_gpu.py
+++ b/tests/python/gpu/test_operator_gpu.py
@@ -2024,6 +2024,81 @@ def test_bilinear_sampler_versions():
                 if req_dict['grid'] is 'write':
                     assert_almost_equal(exe.grad_dict['grid'].asnumpy(), exe_list[ref_idx].grad_dict['grid'].asnumpy(), rtol=1e-3, atol=1e-5)
 
+@with_seed()
+@unittest.skip("test fails on windows gpu. temporarily disabled till it gets fixed. tracked at https://github.com/apache/incubator-mxnet/issues/14368")
+def test_bulking():
+    # Return the execution time of a model with the specified limits to the bulked op segments
+    def test_bulking_helper(data_shape, num_ops, num_iterations,
+                            max_fwd_segment_size, max_bwd_segment_size, enable_bulking_in_training):
+        orig_environ = os.environ.copy()
+        try:
+            # Explore different ways of setting the env vars.
+            # The framework does not cache the bulked seg size env var lookups during symbolic.
+            os.environ['MXNET_EXEC_BULK_EXEC_TRAIN'] = str(enable_bulking_in_training)
+            if max_fwd_segment_size == max_bwd_segment_size:
+                os.environ['MXNET_EXEC_BULK_EXEC_MAX_NODE_TRAIN'] = str(max_fwd_segment_size)
+                os.environ.pop('MXNET_EXEC_BULK_EXEC_MAX_NODE_TRAIN_FWD', None)
+                os.environ.pop('MXNET_EXEC_BULK_EXEC_MAX_NODE_TRAIN_BWD', None)
+            else:
+                os.environ.pop('MXNET_EXEC_BULK_EXEC_MAX_NODE_TRAIN', None)
+                os.environ['MXNET_EXEC_BULK_EXEC_MAX_NODE_TRAIN_FWD'] = str(max_fwd_segment_size)
+                os.environ['MXNET_EXEC_BULK_EXEC_MAX_NODE_TRAIN_BWD'] = str(max_bwd_segment_size)
+
+            ctx = default_context()
+            # build symbol
+            X = mx.sym.Variable('X')
+            sym = mx.sym.flip(X, axis=0)
+            for _ in range(num_ops-1):
+                sym = mx.sym.flip(sym, axis=0)
+            x = mx.ndarray.zeros(data_shape)
+            dx = mx.ndarray.zeros(data_shape)
+            dy = mx.ndarray.ones(data_shape)
+            exe = sym.bind(ctx=ctx, args=[x], args_grad = {'X':dx})
+
+            # time a number of forward() and backward() executions after some warm-up iterations
+            warmups = 1
+            for i in range(num_iterations+warmups):
+                if i == warmups:
+                    start = time.time()
+                exe.forward(is_train=True)
+                exe.backward(dy)
+                dx.wait_to_read()
+            time_per_iteration = (time.time() - start) / num_iterations
+        finally:
+            os.environ.clear()
+            os.environ.update(orig_environ)
+        return time_per_iteration
+
+    data_shape = (10,)
+    num_ops = 1000
+    num_iterations = 20
+
+    # test case format: (max_fwd_segment_size, max_bwd_segment_size, enable_bulking_in_training)
+    test_cases = [(0,0,True), (1,1,True), (15,15,False), (15,0,True), (0,15,True), (15,15,True)]
+    times = {}
+    times_str = ''
+    for seg_sizes in test_cases:
+        times[seg_sizes] = test_bulking_helper(data_shape, num_ops, num_iterations,
+                                               seg_sizes[0], seg_sizes[1], seg_sizes[2])
+        times_str +=\
+            '\n    runtime of (fwd,bwd,enable) op seg setting ({},{},{}) =\t{:.1f} msec'.format(
+            seg_sizes[0], seg_sizes[1], seg_sizes[2], 1000.0 * times[seg_sizes])
+
+    fastest_non_bulked_time = min(times[(0,0,True)], times[(1,1,True)], times[(15,15,False)])
+    slowest_half_bulked_time = max(times[(0,15,True)], times[(15,0,True)])
+    fastest_half_bulked_time = min(times[(0,15,True)], times[(15,0,True)])
+    fully_bulked_time = times[(15,15,True)]
+
+    print(times_str)
+    # Non-bulked times[0,0,True], times[1,1,True] and times[15,15,False] should be about the same,
+    # slower than both half-bulked times[0,15,True] and times[15,0,True]
+    assert slowest_half_bulked_time < fastest_non_bulked_time,\
+        'A half-bulked exec time is slower than the non-bulked time by {} secs! {}'\
+            .format(slowest_half_bulked_time - fastest_non_bulked_time, times_str)
+    # The fully bulked times[15,15,True] should be faster than both half-bulked runs
+    assert fully_bulked_time < fastest_half_bulked_time,\
+        'The fully-bulked exec time is slower than a half-bulked time by {} secs! {}'\
+            .format(fully_bulked_time - fastest_half_bulked_time, times_str)
 
 def test_context_num_gpus():
     # Test that num_gpus reports at least one GPU, as the test is run on a GPU host.
diff --git a/tests/requirements.txt b/tests/requirements.txt
index 3ca696b288c9..d58874084d7b 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -2,3 +2,6 @@
 mock
 nose
 nose-timer
+ipython
+numpy
+scipy