diff --git a/anki/media.py b/anki/media.py
index 1b43fbad2..e58760bf2 100644
--- a/anki/media.py
+++ b/anki/media.py
@@ -72,6 +72,9 @@ class MediaManager(object):
     def _isFAT32(self):
         if not isWin:
             return
+        if self._dir.startswith("\\\\"):
+            # not sure if we can check on a network drive, so just assume no
+            return
         import win32api, win32file
         name = win32file.GetVolumeNameForVolumeMountPoint(self._dir[:3])
         if win32api.GetVolumeInformation(name)[4].lower().startswith("fat"):