diff --git a/.github/workflows/pull-request.yml b/.github/workflows/pull-request.yml
index 598867826..4fa5c200a 100644
--- a/.github/workflows/pull-request.yml
+++ b/.github/workflows/pull-request.yml
@@ -102,7 +102,7 @@ jobs:
       run: |
         # Windows has python3 already installed, but it's called "python".
         # Copy python.exe to the proper name so scripts "just work".
-        copy (get-command python).source (get-command python).source.Replace("python.exe", "python3.exe")
+        try { Get-Command python3 } catch { copy (get-command python).source (get-command python).source.Replace("python.exe", "python3.exe") }
         bash ./tests/build.sh
 
 
diff --git a/libraries/ESP8266SdFat b/libraries/ESP8266SdFat
index 0a46e4ebb..9f94df41c 160000
--- a/libraries/ESP8266SdFat
+++ b/libraries/ESP8266SdFat
@@ -1 +1 @@
-Subproject commit 0a46e4ebb2de585c5a64f981dbc2b2223a438984
+Subproject commit 9f94df41ccdb064ff4cb98d7b2737a369f6be1a0