diff --git a/app/Console/Commands/XboardInstall.php b/app/Console/Commands/XboardInstall.php
index 50bff23..2c0b159 100644
--- a/app/Console/Commands/XboardInstall.php
+++ b/app/Console/Commands/XboardInstall.php
@@ -160,7 +160,9 @@ class XboardInstall extends Command
             if (!self::registerAdmin($email, $password)) {
                 abort(500, '管理员账号注册失败，请重试');
             }
-            self::restoreProtectedPlugins($this);
+            if (function_exists('exec')) {
+                self::restoreProtectedPlugins($this);
+            }
             $this->info('正在安装默认插件...');
             PluginManager::installDefaultPlugins();
             $this->info('默认插件安装完成');