diff --git a/src/SPC/builder/windows/library/libavif.php b/src/SPC/builder/windows/library/libavif.php
index 86f6748a..c9c966a7 100644
--- a/src/SPC/builder/windows/library/libavif.php
+++ b/src/SPC/builder/windows/library/libavif.php
@@ -12,6 +12,8 @@ class libavif extends WindowsLibraryBase
 
     protected function build(): void
     {
+        // workaround for libavif 1.2.0 bug
+        FileSystem::replaceFileStr($this->source_dir . '\src\read.c', 'avifFileType ftyp = {};', 'avifFileType ftyp = { 0 };');
         // reset cmake
         FileSystem::resetDir($this->source_dir . '\build');
 
diff --git a/src/globals/test-extensions.php b/src/globals/test-extensions.php
index ee5911d7..d63b4604 100644
--- a/src/globals/test-extensions.php
+++ b/src/globals/test-extensions.php
@@ -14,17 +14,18 @@ declare(strict_types=1);
 // test php version
 $test_php_version = [
     '8.1',
-    '8.2',
-    '8.3',
+    // '8.2',
+    // '8.3',
     '8.4',
 ];
 
 // test os (macos-13, macos-14, ubuntu-latest, windows-latest are available)
 $test_os = [
-    'macos-13',
-    'macos-14',
-    'ubuntu-latest',
-    // 'windows-latest',
+    // 'macos-13',
+    // 'macos-14',
+    // 'ubuntu-latest',
+    'windows-2019',
+    'windows-latest',
 ];
 
 // whether enable thread safe
@@ -41,13 +42,13 @@ $prefer_pre_built = false;
 // If you want to test your added extensions and libs, add below (comma separated, example `bcmath,openssl`).
 $extensions = match (PHP_OS_FAMILY) {
     'Linux', 'Darwin' => 'gettext',
-    'Windows' => 'bcmath',
+    'Windows' => 'gd',
 };
 
 // If you want to test lib-suggests feature with extension, add them below (comma separated, example `libwebp,libavif`).
 $with_libs = match (PHP_OS_FAMILY) {
     'Linux', 'Darwin' => '',
-    'Windows' => '',
+    'Windows' => 'libavif',
 };
 
 // Please change your test base combination. We recommend testing with `common`.