diff --git a/.ncrunch/Avalonia.Visuals.UnitTests.net461.v3.ncrunchproject b/.ncrunch/Avalonia.Visuals.UnitTests.net461.v3.ncrunchproject
new file mode 100644
index 0000000000..6800b4a3fe
--- /dev/null
+++ b/.ncrunch/Avalonia.Visuals.UnitTests.net461.v3.ncrunchproject
@@ -0,0 +1,5 @@
+<ProjectConfiguration>
+  <Settings>
+    <PreviouslyBuiltSuccessfully>True</PreviouslyBuiltSuccessfully>
+  </Settings>
+</ProjectConfiguration>
\ No newline at end of file
diff --git a/tests/Avalonia.UnitTests/TestServices.cs b/tests/Avalonia.UnitTests/TestServices.cs
index a4410126ef..f26d0ad112 100644
--- a/tests/Avalonia.UnitTests/TestServices.cs
+++ b/tests/Avalonia.UnitTests/TestServices.cs
@@ -38,9 +38,6 @@ namespace Avalonia.UnitTests
         public static readonly TestServices MockPlatformWrapper = new TestServices(
             platform: Mock.Of<IRuntimePlatform>());
 
-        public static readonly TestServices MockWindowingPlatform = new TestServices(
-                    windowingPlatform: new MockWindowingPlatform());
-
         public static readonly TestServices MockStyler = new TestServices(
             styler: Mock.Of<IStyler>());