diff --git a/lldb/packages/Python/lldbsuite/test/lang/cpp/lambdas/TestLambdas.py b/lldb/packages/Python/lldbsuite/test/lang/cpp/lambdas/TestLambdas.py
index 284caabbc17b..c8308c16011e 100644
--- a/lldb/packages/Python/lldbsuite/test/lang/cpp/lambdas/TestLambdas.py
+++ b/lldb/packages/Python/lldbsuite/test/lang/cpp/lambdas/TestLambdas.py
@@ -1,7 +1,4 @@
 from lldbsuite.test import lldbinline
 from lldbsuite.test import decorators
 
-lldbinline.MakeInlineTest(
-    __file__, globals(), [
-        lldbinline.expectedFailureAll(
-            oslist=["windows"])])
+lldbinline.MakeInlineTest(__file__, globals())
diff --git a/lldb/packages/Python/lldbsuite/test/lang/cpp/namespace/TestNamespaceLookup.py b/lldb/packages/Python/lldbsuite/test/lang/cpp/namespace/TestNamespaceLookup.py
index f87dc10d3439..196b038b4176 100644
--- a/lldb/packages/Python/lldbsuite/test/lang/cpp/namespace/TestNamespaceLookup.py
+++ b/lldb/packages/Python/lldbsuite/test/lang/cpp/namespace/TestNamespaceLookup.py
@@ -42,7 +42,7 @@ class NamespaceLookupTestCase(TestBase):
                              'stop reason = breakpoint'])
 
     @expectedFailureAll(
-        oslist=["windows", "freebsd"],
+        oslist=["freebsd"],
         bugnumber="llvm.org/pr25819")
     def test_scope_lookup_with_run_command(self):
         """Test scope lookup of functions in lldb."""
@@ -201,7 +201,6 @@ class NamespaceLookupTestCase(TestBase):
         # finds the global ::func().
         self.expect("expr -- func()", startstr="(int) $0 = 2")
 
-    @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr25819")
     def test_scope_lookup_before_using_with_run_command(self):
         """Test scope lookup before using in lldb."""
         self.build()
@@ -227,7 +226,7 @@ class NamespaceLookupTestCase(TestBase):
         oslist=["linux"],
         debug_info=["dwo"])  # Skip to avoid crash
     @expectedFailureAll(
-        oslist=["windows", "freebsd"],
+        oslist=["freebsd"],
         bugnumber="llvm.org/pr25819")
     def test_scope_after_using_directive_lookup_with_run_command(self):
         """Test scope lookup after using directive in lldb."""
@@ -291,7 +290,7 @@ class NamespaceLookupTestCase(TestBase):
         self.expect("expr -- func()", startstr="error")
 
     @expectedFailureAll(
-        oslist=["windows", "freebsd"],
+        oslist=["freebsd"],
         bugnumber="llvm.org/pr25819")
     def test_scope_lookup_shadowed_by_using_with_run_command(self):
         """Test scope lookup shadowed by using in lldb."""
diff --git a/lldb/packages/Python/lldbsuite/test/python_api/frame/TestFrames.py b/lldb/packages/Python/lldbsuite/test/python_api/frame/TestFrames.py
index 85e915ad3a48..fc2f03f9e617 100644
--- a/lldb/packages/Python/lldbsuite/test/python_api/frame/TestFrames.py
+++ b/lldb/packages/Python/lldbsuite/test/python_api/frame/TestFrames.py
@@ -20,7 +20,6 @@ class FrameAPITestCase(TestBase):
     mydir = TestBase.compute_mydir(__file__)
 
     @add_test_categories(['pyapi'])
-    @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24778")
     def test_get_arg_vals_for_call_stack(self):
         """Exercise SBFrame.GetVariables() API to get argument vals."""
         self.build()
diff --git a/lldb/packages/Python/lldbsuite/test/python_api/hello_world/TestHelloWorld.py b/lldb/packages/Python/lldbsuite/test/python_api/hello_world/TestHelloWorld.py
index 0f14b103019f..6d1fb232d997 100644
--- a/lldb/packages/Python/lldbsuite/test/python_api/hello_world/TestHelloWorld.py
+++ b/lldb/packages/Python/lldbsuite/test/python_api/hello_world/TestHelloWorld.py
@@ -76,7 +76,6 @@ class HelloWorldTestCase(TestBase):
         self.assertEqual(breakpoint.GetHitCount(), 1, BREAKPOINT_HIT_ONCE)
 
     @add_test_categories(['pyapi'])
-    @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24600")
     @skipIfiOSSimulator
     def test_with_attach_to_process_with_id_api(self):
         """Create target, spawn a process, and attach to it with process id."""
@@ -107,7 +106,6 @@ class HelloWorldTestCase(TestBase):
                              '(int)argc=2'])
 
     @add_test_categories(['pyapi'])
-    @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24600")
     @skipIfiOSSimulator
     def test_with_attach_to_process_with_name_api(self):
         """Create target, spawn a process, and attach to it with process name."""
diff --git a/lldb/packages/Python/lldbsuite/test/python_api/watchpoint/watchlocation/TestTargetWatchAddress.py b/lldb/packages/Python/lldbsuite/test/python_api/watchpoint/watchlocation/TestTargetWatchAddress.py
index d5862d274ceb..3c19c589b7a7 100644
--- a/lldb/packages/Python/lldbsuite/test/python_api/watchpoint/watchlocation/TestTargetWatchAddress.py
+++ b/lldb/packages/Python/lldbsuite/test/python_api/watchpoint/watchlocation/TestTargetWatchAddress.py
@@ -108,7 +108,6 @@ class TargetWatchAddressAPITestCase(TestBase):
     # No size constraint on MIPS for watches
     @skipIf(archs=['mips', 'mipsel', 'mips64', 'mips64el'])
     @skipIf(archs=['s390x'])  # Likewise on SystemZ
-    @expectedFailureAll(oslist=["windows"])
     def test_watch_address_with_invalid_watch_size(self):
         """Exercise SBTarget.WatchAddress() API but pass an invalid watch_size."""
         self.build()