diff --git a/tests/test_utils.py b/tests/test_utils.py
index 12a0497..929954c 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -7,6 +7,9 @@
 import ctypes
 import string
 import platform
+import os
+import sys
+from pathlib import Path
 
 from local_vault.utils import (
     secure_delete, generate_random_password, validate_password_strength,
@@ -39,23 +42,49 @@ def test_validate_password_strength():
     assert not validate_password_strength("weakpassword")
 
 def test_is_root(monkeypatch):
-    monkeypatch.setattr("os.geteuid", lambda: 0)
-    assert is_root()
-    monkeypatch.setattr("os.geteuid", lambda: 1000)
-    assert not is_root()
+    if os.name == "nt":
+        # windows use another method
+        import ctypes
+
+        monkeypatch.setattr("ctypes.windll.shell32.IsUserAnAdmin", lambda: True)
+        assert is_root()
+
+        monkeypatch.setattr("ctypes.windll.shell32.IsUserAnAdmin", lambda: False)
+        assert not is_root()
+    else:
+        monkeypatch.setattr("os.geteuid", lambda: 0)
+        assert is_root()
+
+        monkeypatch.setattr("os.geteuid", lambda: 1000)
+        assert not is_root()
 
 def test_ensure_directory_permissions(tmpdir):
     dir_path = Path(tmpdir) / "test_dir"
     ensure_directory_permissions(dir_path)
     assert dir_path.exists()
-    assert oct(dir_path.stat().st_mode)[-3:] == "700"
+
+    if os.name == "nt":
+        # windows: just check if it is accessible (read/write/execute)
+        assert os.access(dir_path, os.R_OK)
+        assert os.access(dir_path, os.W_OK)
+        assert os.access(dir_path, os.X_OK)
+    else:
+        # unix: assert exact permission bits
+        assert oct(dir_path.stat().st_mode)[-3:] == "700"
 
 def test_secure_temporary_file():
     with secure_temporary_file(mode='w+b', suffix='.txt') as f:
         f.write(b"Test data")
         f.flush()
         assert os.path.exists(f.name)
-        assert oct(os.stat(f.name).st_mode)[-3:] == "600"
+
+        if os.name == "nt":
+            # windows: check if readable and writable
+            assert os.access(f.name, os.R_OK)
+            assert os.access(f.name, os.W_OK)
+        else:
+            # unix: assert strict permission bits
+            assert oct(os.stat(f.name).st_mode)[-3:] == "600"
 
 def test_get_system_entropy():
     entropy = get_system_entropy()