diff --git a/.github/workflows/build release.yml b/.github/workflows/build release.yml
index bc69bfe..307184f 100644
--- a/.github/workflows/build release.yml	
+++ b/.github/workflows/build release.yml	
@@ -1,6 +1,7 @@
 name: Flutter Windows, Linux, macOS, and Android Release
 
 on:
+  workflow_dispatch:
   push:
     branches: ["main"]
   pull_request:
@@ -8,7 +9,10 @@ on:
 
 jobs:
   build-windows:
-    runs-on: windows-latest
+    # Flutter 3.29 只支持到 VS 2022（主版本 17）；windows-latest 与 windows-2025
+    # 现在都指向 VS 2026(18) 镜像，会退化成 -G "Visual Studio 16 2019" 而失败。
+    # 待升级 Flutter（>= 3.41 才认识 VS 2026）后可去掉此固定。
+    runs-on: windows-2022
 
     steps:
       - name: Checkout repository