diff --git a/Lib/pathlib.py b/Lib/pathlib.py
index bceae00..1622cbb 100644
--- a/Lib/pathlib.py
+++ b/Lib/pathlib.py
@@ -15,16 +15,15 @@
 
 
 supports_symlinks = True
-try:
+if os.name == 'nt':
     import nt
-except ImportError:
-    nt = None
-else:
     if sys.getwindowsversion()[:2] >= (6, 0):
         from nt import _getfinalpathname
     else:
         supports_symlinks = False
         _getfinalpathname = None
+else:
+    nt = None
 
 
 __all__ = [
@@ -110,7 +109,7 @@
     has_drv = True
     pathmod = ntpath
 
-    is_supported = (nt is not None)
+    is_supported = (os.name == 'nt')
 
     drive_letters = (
         set(chr(x) for x in range(ord('a'), ord('z') + 1)) |
diff --git a/Misc/NEWS b/Misc/NEWS
index 3e07239..30df605 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -185,6 +185,8 @@
 Library
 -------
 
+- Issue #22370: Windows detection in pathlib is now more robust.
+
 - Issue #22841: Reject coroutines in asyncio add_signal_handler().
   Patch by Ludovic.Gasc.