diff --git a/src/ui/form/basecontroller.cpp b/src/ui/form/basecontroller.cpp
index 9b90b310..a132efaa 100644
--- a/src/ui/form/basecontroller.cpp
+++ b/src/ui/form/basecontroller.cpp
@@ -10,6 +10,7 @@
 #include <driver/drivermanager.h>
 #include <fortmanager.h>
 #include <fortsettings.h>
+#include <manager/autoupdatemanager.h>
 #include <manager/hotkeymanager.h>
 #include <manager/translationmanager.h>
 #include <manager/windowmanager.h>
@@ -88,6 +89,11 @@ WindowManager *BaseController::windowManager() const
     return IoC<WindowManager>();
 }
 
+AutoUpdateManager *BaseController::autoUpdateManager() const
+{
+    return IoC<AutoUpdateManager>();
+}
+
 TaskManager *BaseController::taskManager() const
 {
     return IoC<TaskManager>();
diff --git a/src/ui/form/basecontroller.h b/src/ui/form/basecontroller.h
index 991cf775..f2d8e541 100644
--- a/src/ui/form/basecontroller.h
+++ b/src/ui/form/basecontroller.h
@@ -3,6 +3,7 @@
 
 #include <QObject>
 
+class AutoUpdateManager;
 class ConfAppManager;
 class ConfManager;
 class ConfRuleManager;
@@ -38,6 +39,7 @@ public:
     DriverManager *driverManager() const;
     TranslationManager *translationManager() const;
     WindowManager *windowManager() const;
+    AutoUpdateManager *autoUpdateManager() const;
     TaskManager *taskManager() const;
 
 signals:
diff --git a/src/ui/form/home/pages/aboutpage.cpp b/src/ui/form/home/pages/aboutpage.cpp
index 0f64b621..6f0cea03 100644
--- a/src/ui/form/home/pages/aboutpage.cpp
+++ b/src/ui/form/home/pages/aboutpage.cpp
@@ -2,11 +2,13 @@
 
 #include <QGroupBox>
 #include <QLabel>
+#include <QProgressBar>
 #include <QToolButton>
 #include <QVBoxLayout>
 
 #include <form/controls/controlutil.h>
 #include <form/home/homecontroller.h>
+#include <manager/autoupdatemanager.h>
 #include <task/taskinfoupdatechecker.h>
 #include <task/taskmanager.h>
 #include <util/dateutil.h>
@@ -36,6 +38,7 @@ AboutPage::AboutPage(HomeController *ctrl, QWidget *parent) : HomeBasePage(ctrl,
 void AboutPage::onRetranslateUi()
 {
     m_btDownload->setText(tr("Download"));
+    m_btInstall->setText(tr("Install"));
     m_btCheckUpdate->setText(tr("Check for update"));
 
     retranslateNewVersionBox();
@@ -48,13 +51,14 @@ void AboutPage::retranslateNewVersionBox()
 
 void AboutPage::setupUi()
 {
-    auto layout = new QVBoxLayout();
-
     // New Version Group Box
     setupNewVersionBox();
-    setupNewVersionUpdate();
-    layout->addWidget(m_gbNewVersion, 0, Qt::AlignHCenter);
 
+    setupNewVersionUpdate();
+    setupAutoUpdate();
+
+    auto layout = new QVBoxLayout();
+    layout->addWidget(m_gbNewVersion, 0, Qt::AlignHCenter);
     layout->addStretch();
 
     this->setLayout(layout);
@@ -71,6 +75,9 @@ void AboutPage::setupNewVersionBox()
     m_labelArea = ControlUtil::wrapToScrollArea(m_labelRelease);
     m_labelArea->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::MinimumExpanding);
 
+    // Progress Bar
+    m_progressBar = new QProgressBar();
+
     // Buttons
     auto buttonsLayout = setupButtonsLayout();
 
@@ -78,6 +85,7 @@ void AboutPage::setupNewVersionBox()
     layout->setSpacing(10);
 
     layout->addWidget(m_labelArea);
+    layout->addWidget(m_progressBar);
     layout->addLayout(buttonsLayout);
 
     m_gbNewVersion = new QGroupBox();
@@ -88,21 +96,20 @@ void AboutPage::setupNewVersionBox()
 QLayout *AboutPage::setupButtonsLayout()
 {
     // Download
-    m_btDownload = ControlUtil::createFlatToolButton(":/icons/download.png");
+    m_btDownload = ControlUtil::createFlatToolButton(
+            ":/icons/download.png", [&] { autoUpdateManager()->startDownload(); });
 
-    connect(m_btDownload, &QAbstractButton::clicked, ctrl(), &BaseController::onLinkClicked);
+    // Install
+    m_btInstall = ControlUtil::createFlatToolButton(
+            ":/icons/tick.png", [&] { autoUpdateManager()->runInstaller(); });
 
     // Check Update
     m_btCheckUpdate = ControlUtil::createFlatToolButton(
             ":/icons/play.png", [&] { taskManager()->runTask(TaskInfo::UpdateChecker); });
 
-    auto layout = new QHBoxLayout();
-    layout->setSpacing(10);
-
-    layout->addStretch();
-    layout->addWidget(m_btDownload);
-    layout->addWidget(m_btCheckUpdate);
-    layout->addStretch();
+    auto layout = ControlUtil::createHLayoutByWidgets({ /*stretch*/ nullptr, m_btDownload,
+            m_btInstall, m_btCheckUpdate, /*stretch*/ nullptr });
+    layout->setSpacing(6);
 
     return layout;
 }
@@ -110,17 +117,17 @@ QLayout *AboutPage::setupButtonsLayout()
 void AboutPage::setupNewVersionUpdate()
 {
     const auto refreshNewVersion = [&] {
-        auto updateChecker = taskManager()->taskInfoUpdateChecker();
-        m_isNewVersion = updateChecker->isNewVersion();
+        auto taskInfo = taskManager()->taskInfoUpdateChecker();
+
+        m_isNewVersion = taskInfo->isNewVersion();
 
         m_labelArea->setVisible(m_isNewVersion);
-        m_labelRelease->setText(updateChecker->releaseText());
+        m_labelRelease->setText(taskInfo->releaseText());
 
-        m_btDownload->setVisible(m_isNewVersion);
-        m_btDownload->setWindowFilePath(updateChecker->downloadUrl());
-        m_btDownload->setToolTip(updateChecker->downloadUrl());
+        m_progressBar->setRange(0, taskInfo->downloadSize());
+        m_btDownload->setVisible(m_isNewVersion && !m_btInstall->isVisible());
 
-        m_btCheckUpdate->setToolTip(checkUpdateToolTip(updateChecker));
+        m_btCheckUpdate->setToolTip(checkUpdateToolTip(taskInfo));
 
         retranslateNewVersionBox();
     };
@@ -129,3 +136,28 @@ void AboutPage::setupNewVersionUpdate()
 
     connect(taskManager(), &TaskManager::appVersionUpdated, this, refreshNewVersion);
 }
+
+void AboutPage::setupAutoUpdate()
+{
+    const auto refreshAutoUpdate = [&] {
+        auto manager = autoUpdateManager();
+
+        const bool isNewVersion = manager->isNewVersion();
+        const bool isDownloaded = manager->isDownloaded();
+        const bool isDownloadActive = (manager->isDownloading() || isDownloaded);
+
+        if (isDownloaded) {
+            m_progressBar->setValue(m_progressBar->maximum());
+        }
+        m_progressBar->setVisible(isDownloadActive);
+
+        m_btDownload->setVisible(isNewVersion && !isDownloadActive);
+        m_btInstall->setVisible(isNewVersion && isDownloaded);
+    };
+
+    refreshAutoUpdate();
+
+    connect(autoUpdateManager(), &AutoUpdateManager::isDownloadingChanged, this, refreshAutoUpdate);
+    connect(autoUpdateManager(), &AutoUpdateManager::bytesReceivedChanged, m_progressBar,
+            &QProgressBar::setValue);
+}
diff --git a/src/ui/form/home/pages/aboutpage.h b/src/ui/form/home/pages/aboutpage.h
index f96e6d3a..c6a1cb2e 100644
--- a/src/ui/form/home/pages/aboutpage.h
+++ b/src/ui/form/home/pages/aboutpage.h
@@ -20,6 +20,7 @@ private:
     void setupNewVersionBox();
     QLayout *setupButtonsLayout();
     void setupNewVersionUpdate();
+    void setupAutoUpdate();
 
 private:
     bool m_isNewVersion = false;
@@ -27,7 +28,9 @@ private:
     QGroupBox *m_gbNewVersion = nullptr;
     QLabel *m_labelRelease = nullptr;
     QWidget *m_labelArea = nullptr;
+    QProgressBar *m_progressBar = nullptr;
     QToolButton *m_btDownload = nullptr;
+    QToolButton *m_btInstall = nullptr;
     QToolButton *m_btCheckUpdate = nullptr;
 };
 
diff --git a/src/ui/form/home/pages/homebasepage.cpp b/src/ui/form/home/pages/homebasepage.cpp
index 712d089b..1af6a231 100644
--- a/src/ui/form/home/pages/homebasepage.cpp
+++ b/src/ui/form/home/pages/homebasepage.cpp
@@ -40,6 +40,11 @@ DriverManager *HomeBasePage::driverManager() const
     return ctrl()->driverManager();
 }
 
+AutoUpdateManager *HomeBasePage::autoUpdateManager() const
+{
+    return ctrl()->autoUpdateManager();
+}
+
 TaskManager *HomeBasePage::taskManager() const
 {
     return ctrl()->taskManager();
diff --git a/src/ui/form/home/pages/homebasepage.h b/src/ui/form/home/pages/homebasepage.h
index 2653a883..8de85da7 100644
--- a/src/ui/form/home/pages/homebasepage.h
+++ b/src/ui/form/home/pages/homebasepage.h
@@ -10,16 +10,18 @@ QT_FORWARD_DECLARE_CLASS(QGroupBox)
 QT_FORWARD_DECLARE_CLASS(QLabel)
 QT_FORWARD_DECLARE_CLASS(QLineEdit)
 QT_FORWARD_DECLARE_CLASS(QMenu)
+QT_FORWARD_DECLARE_CLASS(QProgressBar)
 QT_FORWARD_DECLARE_CLASS(QPushButton)
 QT_FORWARD_DECLARE_CLASS(QToolButton)
 
+class AutoUpdateManager;
 class ConfManager;
 class DriverManager;
 class FirewallConf;
 class FortManager;
 class FortSettings ;
-class IniUser;
 class HomeController;
+class IniUser;
 class TaskManager;
 class TranslationManager;
 class WindowManager;
@@ -39,6 +41,7 @@ protected:
     FirewallConf *conf() const;
     IniUser *iniUser() const;
     DriverManager *driverManager() const;
+    AutoUpdateManager *autoUpdateManager() const;
     TaskManager *taskManager() const;
     TranslationManager *translationManager() const;
     WindowManager *windowManager() const;
diff --git a/src/ui/manager/autoupdatemanager.cpp b/src/ui/manager/autoupdatemanager.cpp
index 8c6313f3..f0a3a4f0 100644
--- a/src/ui/manager/autoupdatemanager.cpp
+++ b/src/ui/manager/autoupdatemanager.cpp
@@ -16,9 +16,12 @@ AutoUpdateManager::AutoUpdateManager(const QString &cachePath, QObject *parent)
 {
 }
 
-bool AutoUpdateManager::isDownloading() const
+void AutoUpdateManager::setIsDownloading(bool v)
 {
-    return downloader() && downloader()->started();
+    if (m_isDownloading != v) {
+        m_isDownloading = v;
+        emit isDownloadingChanged(v);
+    }
 }
 
 int AutoUpdateManager::bytesReceived() const
@@ -31,7 +34,7 @@ void AutoUpdateManager::setUp()
     auto taskManager = IoCDependency<TaskManager>();
     auto taskInfo = taskManager->taskInfoUpdateChecker();
 
-    connect(taskManager, &TaskManager::appVersionDownloaded, this,
+    connect(taskManager, &TaskManager::appVersionUpdated, this,
             [=, this] { setupByTaskInfo(taskInfo); });
 
     setupByTaskInfo(taskInfo);
@@ -58,37 +61,43 @@ bool AutoUpdateManager::startDownload()
 
 void AutoUpdateManager::setupDownloader()
 {
-    setIsDownloaded(false);
-
     downloader()->setUrl(m_downloadUrl);
 
-    connect(downloader(), &NetDownloader::startedChanged, this,
-            &AutoUpdateManager::isDownloadingChanged);
     connect(downloader(), &NetDownloader::dataReceived, this,
             &AutoUpdateManager::bytesReceivedChanged);
+
+    setIsDownloaded(false);
+    setIsDownloading(true);
 }
 
-void AutoUpdateManager::downloadFinished(bool success)
+void AutoUpdateManager::downloadFinished(const QByteArray &data, bool success)
 {
     if (success) {
-        success = saveInstaller();
+        success = saveInstaller(data);
+
         setIsDownloaded(success);
     }
 
+    setIsDownloading(false);
+
     finish(success);
 }
 
 void AutoUpdateManager::setupByTaskInfo(TaskInfoUpdateChecker *taskInfo)
 {
+    m_isNewVersion = taskInfo->isNewVersion();
+    if (!m_isNewVersion)
+        return;
+
     m_downloadUrl = taskInfo->downloadUrl();
-    if (m_downloadUrl.isEmpty())
+    m_downloadSize = taskInfo->downloadSize();
+    if (m_downloadUrl.isEmpty() || m_downloadSize <= 0)
         return;
 
     m_fileName = QUrl(m_downloadUrl).fileName();
-    m_downloadSize = taskInfo->downloadSize();
 
     const QFileInfo fi(installerPath());
-    setIsDownloaded(fi.size() == m_downloadSize);
+    setIsDownloaded(fi.exists() && fi.size() == m_downloadSize);
 }
 
 void AutoUpdateManager::clearUpdateDir()
@@ -100,9 +109,8 @@ void AutoUpdateManager::clearUpdateDir()
     }
 }
 
-bool AutoUpdateManager::saveInstaller()
+bool AutoUpdateManager::saveInstaller(const QByteArray &fileData)
 {
-    const QByteArray fileData = downloader()->takeBuffer();
     if (fileData.size() != m_downloadSize)
         return false;
 
diff --git a/src/ui/manager/autoupdatemanager.h b/src/ui/manager/autoupdatemanager.h
index 5ef7a53f..bc627bab 100644
--- a/src/ui/manager/autoupdatemanager.h
+++ b/src/ui/manager/autoupdatemanager.h
@@ -15,9 +15,14 @@ class AutoUpdateManager : public TaskDownloader, public IocService
 public:
     explicit AutoUpdateManager(const QString &cachePath, QObject *parent = nullptr);
 
-    bool isDownloaded() const { return m_isDownloaded; }
+    bool isNewVersion() const { return m_isNewVersion; }
+
+    bool isDownloaded() const { return m_isDownloaded; }
+    void setIsDownloaded(bool v) { m_isDownloaded = v; }
+
+    bool isDownloading() const { return m_isDownloading; }
+    void setIsDownloading(bool v);
 
-    virtual bool isDownloading() const;
     virtual int bytesReceived() const;
 
     void setUp() override;
@@ -29,32 +34,32 @@ public slots:
     bool runInstaller();
 
 signals:
-    void isDownloadingChanged();
-    void bytesReceivedChanged();
+    void isDownloadingChanged(bool downloading);
+    void bytesReceivedChanged(int size);
 
     void restartClients();
 
 protected:
-    void setIsDownloaded(bool v) { m_isDownloaded = v; }
-
     void setupDownloader() override;
 
 protected slots:
-    void downloadFinished(bool success) override;
+    void downloadFinished(const QByteArray &data, bool success) override;
 
 private:
     void setupByTaskInfo(TaskInfoUpdateChecker *taskInfo);
 
     void clearUpdateDir();
 
-    bool saveInstaller();
+    bool saveInstaller(const QByteArray &fileData);
 
     QString installerPath() const { return m_updatePath + m_fileName; }
 
     static QString getDownloadUrl();
 
 private:
-    bool m_isDownloaded = false;
+    bool m_isNewVersion : 1 = false;
+    bool m_isDownloaded : 1 = false;
+    bool m_isDownloading : 1 = false;
 
     QString m_updatePath;
 
diff --git a/src/ui/rpc/autoupdatemanagerrpc.cpp b/src/ui/rpc/autoupdatemanagerrpc.cpp
index 5376b950..c3f4d919 100644
--- a/src/ui/rpc/autoupdatemanagerrpc.cpp
+++ b/src/ui/rpc/autoupdatemanagerrpc.cpp
@@ -55,19 +55,11 @@ AutoUpdateManagerRpc::AutoUpdateManagerRpc(const QString &cachePath, QObject *pa
 {
 }
 
-void AutoUpdateManagerRpc::setIsDownloading(bool v)
-{
-    if (m_isDownloading != v) {
-        m_isDownloading = v;
-        emit isDownloadingChanged();
-    }
-}
-
 void AutoUpdateManagerRpc::setBytesReceived(int v)
 {
     if (m_bytesReceived != v) {
         m_bytesReceived = v;
-        emit bytesReceivedChanged();
+        emit bytesReceivedChanged(v);
     }
 }
 
diff --git a/src/ui/rpc/autoupdatemanagerrpc.h b/src/ui/rpc/autoupdatemanagerrpc.h
index e26116ef..f3b7e6c6 100644
--- a/src/ui/rpc/autoupdatemanagerrpc.h
+++ b/src/ui/rpc/autoupdatemanagerrpc.h
@@ -15,9 +15,6 @@ class AutoUpdateManagerRpc : public AutoUpdateManager
 public:
     explicit AutoUpdateManagerRpc(const QString &cachePath, QObject *parent = nullptr);
 
-    bool isDownloading() const override { return m_isDownloading; }
-    void setIsDownloading(bool v);
-
     int bytesReceived() const override { return m_bytesReceived; }
     void setBytesReceived(int v);
 
@@ -41,7 +38,6 @@ private:
     void setupClientSignals();
 
 private:
-    bool m_isDownloading = false;
     int m_bytesReceived = 0;
 };
 
diff --git a/src/ui/task/taskdownloader.h b/src/ui/task/taskdownloader.h
index c38616ee..a678c23c 100644
--- a/src/ui/task/taskdownloader.h
+++ b/src/ui/task/taskdownloader.h
@@ -22,7 +22,7 @@ public slots:
     void finish(bool success = false) override;
 
 protected slots:
-    virtual void downloadFinished(bool success) = 0;
+    virtual void downloadFinished(const QByteArray &data, bool success) = 0;
 
 private:
     void createDownloader();
diff --git a/src/ui/task/taskupdatechecker.cpp b/src/ui/task/taskupdatechecker.cpp
index 86f3e85a..25011ff7 100644
--- a/src/ui/task/taskupdatechecker.cpp
+++ b/src/ui/task/taskupdatechecker.cpp
@@ -55,10 +55,10 @@ void TaskUpdateChecker::setupDownloader()
     downloader()->setUrl(APP_UPDATES_API_URL);
 }
 
-void TaskUpdateChecker::downloadFinished(bool success)
+void TaskUpdateChecker::downloadFinished(const QByteArray &data, bool success)
 {
     if (success) {
-        success = parseBuffer(downloader()->takeBuffer());
+        success = parseBuffer(data);
     }
 
     finish(success);
diff --git a/src/ui/task/taskupdatechecker.h b/src/ui/task/taskupdatechecker.h
index 70637143..fb56c4e8 100644
--- a/src/ui/task/taskupdatechecker.h
+++ b/src/ui/task/taskupdatechecker.h
@@ -20,7 +20,7 @@ protected:
     void setupDownloader() override;
 
 protected slots:
-    void downloadFinished(bool success) override;
+    void downloadFinished(const QByteArray &data, bool success) override;
 
 private:
     bool parseBuffer(const QByteArray &buffer);
diff --git a/src/ui/task/taskzonedownloader.cpp b/src/ui/task/taskzonedownloader.cpp
index a3581cc3..dd82bb12 100644
--- a/src/ui/task/taskzonedownloader.cpp
+++ b/src/ui/task/taskzonedownloader.cpp
@@ -34,13 +34,13 @@ void TaskZoneDownloader::setupDownloader()
     downloader()->setData(formData().toUtf8());
 }
 
-void TaskZoneDownloader::downloadFinished(bool success)
+void TaskZoneDownloader::downloadFinished(const QByteArray &data, bool success)
 {
     if (success) {
         success = false;
 
         QString textChecksum;
-        const auto text = QString::fromLatin1(downloader()->takeBuffer());
+        const auto text = QString::fromLatin1(data);
         const auto list = parseAddresses(text, textChecksum);
 
         if (!list.isEmpty()
@@ -57,25 +57,25 @@ void TaskZoneDownloader::downloadFinished(bool success)
 
 void TaskZoneDownloader::loadTextInline()
 {
-    downloader()->setBuffer(textInline().toUtf8());
+    const QByteArray data = textInline().toUtf8();
 
-    downloadFinished(/*success=*/true);
+    downloadFinished(data, /*success=*/true);
 }
 
 void TaskZoneDownloader::loadLocalFile()
 {
+    QByteArray data;
     bool success = false;
 
     const auto fileModTime = FileUtil::fileModTime(url());
 
     if (sourceModTime() != fileModTime || !FileUtil::fileExists(cacheFileBinPath())) {
-        const auto buffer = FileUtil::readFileData(url());
-        downloader()->setBuffer(buffer);
+        data = FileUtil::readFileData(url());
         setSourceModTime(fileModTime);
         success = true;
     }
 
-    downloadFinished(success);
+    downloadFinished(data, success);
 }
 
 StringViewList TaskZoneDownloader::parseAddresses(const QString &text, QString &checksum) const
diff --git a/src/ui/task/taskzonedownloader.h b/src/ui/task/taskzonedownloader.h
index 88f4df91..5f01d592 100644
--- a/src/ui/task/taskzonedownloader.h
+++ b/src/ui/task/taskzonedownloader.h
@@ -75,7 +75,7 @@ protected:
     void setupDownloader() override;
 
 protected slots:
-    void downloadFinished(bool success) override;
+    void downloadFinished(const QByteArray &data, bool success) override;
 
 private:
     void loadTextInline();
diff --git a/src/ui/util/net/netdownloader.cpp b/src/ui/util/net/netdownloader.cpp
index 745709d2..5590fa3d 100644
--- a/src/ui/util/net/netdownloader.cpp
+++ b/src/ui/util/net/netdownloader.cpp
@@ -26,14 +26,14 @@ void NetDownloader::setStarted(bool v)
 {
     if (m_started != v) {
         m_started = v;
-        emit startedChanged();
+        emit startedChanged(v);
     }
 }
 
 QByteArray NetDownloader::takeBuffer()
 {
-    const QByteArray buf = m_buffer;
-    m_buffer.clear();
+    QByteArray buf;
+    m_buffer.swap(buf);
     return buf;
 }
 
@@ -81,7 +81,7 @@ void NetDownloader::finish(bool success)
         m_reply = nullptr;
     }
 
-    emit finished(success);
+    emit finished(takeBuffer(), success);
 }
 
 void NetDownloader::onDownloadProgress(qint64 bytesReceived, qint64 /*bytesTotal*/)
@@ -93,8 +93,9 @@ void NetDownloader::onDownloadProgress(qint64 bytesReceived, qint64 /*bytesTotal
 
     m_buffer.append(data);
 
-    if (m_buffer.size() < DOWNLOAD_MAXSIZE) {
-        emit dataReceived();
+    const int bufferSize = m_buffer.size();
+    if (bufferSize < DOWNLOAD_MAXSIZE) {
+        emit dataReceived(bufferSize);
     } else {
         qCWarning(LC) << "Error: Too big file";
         finish();
diff --git a/src/ui/util/net/netdownloader.h b/src/ui/util/net/netdownloader.h
index 33fde47e..598aea1c 100644
--- a/src/ui/util/net/netdownloader.h
+++ b/src/ui/util/net/netdownloader.h
@@ -33,9 +33,9 @@ public:
     QByteArray takeBuffer();
 
 signals:
-    void startedChanged();
-    void dataReceived();
-    void finished(bool success);
+    void startedChanged(bool started);
+    void dataReceived(int size);
+    void finished(const QByteArray &data, bool success);
 
 public slots:
     void start();