diff --git a/spark-update-tool/src/appdelegate.cpp b/spark-update-tool/src/appdelegate.cpp
index 1a1c3e9..0c93065 100644
--- a/spark-update-tool/src/appdelegate.cpp
+++ b/spark-update-tool/src/appdelegate.cpp
@@ -14,10 +14,11 @@ AppDelegate::AppDelegate(QObject *parent)
             [this](const QString &packageName, bool success) {
         if (m_downloads.contains(packageName)) {
             m_downloads[packageName].isDownloading = false;
+            // 不要提前设置 isInstalled
             emit updateDisplay(packageName);
             qDebug() << (success ? "下载完成:" : "下载失败:") << packageName;
             if (success) {
-                enqueueInstall(packageName);
+                enqueueInstall(packageName); // 安装完成后再设置 isInstalled
             }
         }
     });
@@ -276,11 +277,11 @@ void AppDelegate::startNextInstall() {
             qDebug().noquote() << QString::fromLocal8Bit(err);
         });
         connect(m_installProcess, QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished),
-                this, [this, packageName, logFile](int /*exitCode*/, QProcess::ExitStatus /*status*/) {
+                this, [this, packageName, logFile](int exitCode, QProcess::ExitStatus status) {
             if (logFile) logFile->close();
-            // 若未检测到“软件包已安装”，此处兜底
-            if (!m_downloads[packageName].isInstalled) {
-                m_downloads[packageName].isInstalling = false;
+            m_downloads[packageName].isInstalling = false;
+            if (exitCode == 0) { 
+                m_downloads[packageName].isInstalled = true;  // 安装成功
             }
             emit updateDisplay(packageName);
             m_installProcess->deleteLater();