diff --git a/compiler-rt/test/asan/TestCases/Windows/lit.local.cfg.py b/compiler-rt/test/asan/TestCases/Windows/lit.local.cfg.py
--- a/compiler-rt/test/asan/TestCases/Windows/lit.local.cfg.py
+++ b/compiler-rt/test/asan/TestCases/Windows/lit.local.cfg.py
@@ -5,10 +5,5 @@
 
 root = getRoot(config)
 
-# We only run a small set of tests on Windows for now.
-# Override the parent directory's "unsupported" decision until we can handle
-# all of its tests.
-if root.host_os in ['Windows']:
-  config.unsupported = False
-else:
+if root.host_os not in ['Windows']:
   config.unsupported = True