diff --git a/tiktok_hashtag_analysis/cli.py b/tiktok_hashtag_analysis/cli.py
index 37141d5..b2583cd 100644
--- a/tiktok_hashtag_analysis/cli.py
+++ b/tiktok_hashtag_analysis/cli.py
@@ -99,6 +99,11 @@ def process_output_dir(
             if not os.access(path=_output_dir, mode=os.W_OK):
                 parser.error(error_message(_output_dir))
             else:
+                # On Windows, os.access is unreliable
+                temp_file = _output_dir / "test.txt"
+                with open(temp_file, 'w') as f:
+                    f.write("test")
+                os.remove(temp_file)
                 return _output_dir
         except PermissionError:
             parser.error(error_message(_output_dir))