From d81182b8ec3b1593daf241d44757a9fa68fd14cc Mon Sep 17 00:00:00 2001
From: Steve Dower <steve.dower@python.org>
Date: Sat, 8 Jan 2022 00:06:53 +0000
Subject: [PATCH] bpo-46217: Revert use of Windows constant that is newer than
 what we support (GH-30473)

---
 .../next/Windows/2022-01-07-22-55-11.bpo-46217.tgJEsB.rst       | 2 ++
 Python/fileutils.c                                              | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)
 create mode 100644 Misc/NEWS.d/next/Windows/2022-01-07-22-55-11.bpo-46217.tgJEsB.rst

diff --git a/Misc/NEWS.d/next/Windows/2022-01-07-22-55-11.bpo-46217.tgJEsB.rst b/Misc/NEWS.d/next/Windows/2022-01-07-22-55-11.bpo-46217.tgJEsB.rst
new file mode 100644
index 00000000000..78b3cd01a03
--- /dev/null
+++ b/Misc/NEWS.d/next/Windows/2022-01-07-22-55-11.bpo-46217.tgJEsB.rst
@@ -0,0 +1,2 @@
+Removed parameter that is unsupported on Windows 8.1 and early Windows 10
+and may have caused build or runtime failures.
diff --git a/Python/fileutils.c b/Python/fileutils.c
index d570be5577a..151c6feb2eb 100644
--- a/Python/fileutils.c
+++ b/Python/fileutils.c
@@ -2129,7 +2129,7 @@ join_relfile(wchar_t *buffer, size_t bufsize,
 {
 #ifdef MS_WINDOWS
     if (FAILED(PathCchCombineEx(buffer, bufsize, dirname, relfile, 
-        PATHCCH_ALLOW_LONG_PATHS | PATHCCH_FORCE_ENABLE_LONG_NAME_PROCESS))) {
+        PATHCCH_ALLOW_LONG_PATHS))) {
         return -1;
     }
 #else