diff --git a/tests/test_cloud_config.py b/tests/test_cloud_config.py
index 7f637f138..8eadf2b7b 100644
--- a/tests/test_cloud_config.py
+++ b/tests/test_cloud_config.py
@@ -1,6 +1,7 @@
 """Tests for the openflight-cloud config module."""
 
 import json
+import os
 import stat
 
 import pytest
@@ -39,6 +40,9 @@ def test_defaults_endpoint_and_enabled_when_missing(self, tmp_path):
 
 
 class TestSaveConfig:
+    @pytest.mark.skipif(
+        os.name == "nt", reason="POSIX permission bits are not representable on Windows"
+    )
     def test_writes_file_with_0600_permissions(self, tmp_path):
         path = tmp_path / "nested" / "cloud.json"
         config = cfg.CloudConfig(device_token="tok", device_id="id")
diff --git a/tests/test_serial_latency.py b/tests/test_serial_latency.py
index cd19232ab..f30bf8ddf 100644
--- a/tests/test_serial_latency.py
+++ b/tests/test_serial_latency.py
@@ -1,10 +1,16 @@
 """Tests for USB serial latency timer diagnostics."""
 
+import os
 from pathlib import Path
 
+import pytest
+
 from openflight.serial_latency import read_usb_serial_latency_timer
 
 
+@pytest.mark.skipif(
+    os.name == "nt", reason="symlink creation requires elevation on Windows"
+)
 def test_read_usb_serial_latency_timer_resolves_udev_alias(tmp_path: Path):
     dev_root = tmp_path / "dev"
     sysfs_root = tmp_path / "sys" / "bus" / "usb-serial" / "devices"