#7909: the prefixes \\.\ and \\?\ indicate special Windows paths, do not try to manipulate them.  See http://msdn.microsoft.com/en-us/library/aa365247%28VS.85%29.aspx for details.
diff --git a/Misc/NEWS b/Misc/NEWS
index 768c7df..398f7db 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -15,6 +15,9 @@
 Library
 -------
 
+- Issue #7909: Do not touch paths with the special prefixes ``\\.\``
+  or ``\\?\`` in ntpath.normpath().
+
 - Issue #1286: Allow using fileinput.FileInput as a context manager.
 
 - Add lfu_cache() and lru_cache() decorators to the functools module.