diff --git a/resources/7za.exe b/resources/7za.exe
new file mode 100644
index 00000000..9544a638
Binary files /dev/null and b/resources/7za.exe differ
diff --git a/scripts/afterPack.cjs b/scripts/afterPack.cjs
index 589a4b95..31133098 100644
--- a/scripts/afterPack.cjs
+++ b/scripts/afterPack.cjs
@@ -22,6 +22,17 @@ async function main(context) {
     } catch (err) {
       console.error('Error creating portable marker file:', err)
     }
+  } else {
+    const fileToRemave = path.join(appOutDir, 'resources/7za.exe')
+    console.log('Checking for unnecessary 7za.exe at', fileToRemave)
+    if (fs.existsSync(fileToRemave)) {
+      try {
+        fs.unlinkSync(fileToRemave)
+        console.log('Removed unnecessary 7za.exe from', fileToRemave)
+      } catch (err) {
+        console.error('Error removing 7za.exe:', err)
+      }
+    }
   }
 }
 
diff --git a/src/main/events/rpc/routes/updater/index.ts b/src/main/events/rpc/routes/updater/index.ts
index 8180faf3..58c280f6 100644
--- a/src/main/events/rpc/routes/updater/index.ts
+++ b/src/main/events/rpc/routes/updater/index.ts
@@ -1,3 +1,4 @@
+import { isPortable } from '@core/datastore/dirs'
 import picgo from '@core/picgo'
 import { BrowserWindow, shell } from 'electron'
 import updater from 'electron-updater'
@@ -12,7 +13,9 @@ const updaterRoutes = [
   {
     action: IRPCActionType.DOWNLOAD_UPDATE,
     handler: async () => {
-      updater.autoUpdater.downloadUpdate()
+      if (!isPortable()) {
+        updater.autoUpdater.downloadUpdate()
+      }
     },
   },
   {
diff --git a/src/main/lifeCycle/autoUpdater.ts b/src/main/lifeCycle/autoUpdater.ts
new file mode 100644
index 00000000..d57d26f7
--- /dev/null
+++ b/src/main/lifeCycle/autoUpdater.ts
@@ -0,0 +1,213 @@
+import { spawn } from 'node:child_process'
+import { createHash } from 'node:crypto'
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
+import { defaultDir, exeDir, exePath, isPortable } from '@core/datastore/dirs'
+import picgo from '@core/picgo'
+import logger from '@core/picgo/logger'
+import windowManager from 'apis/app/window/windowManager'
+import axios, { AxiosRequestConfig } from 'axios'
+import { app } from 'electron'
+import updater from 'electron-updater'
+import fs from 'fs-extra'
+import pkg from 'root/package.json'
+import yaml from 'yaml'
+
+import { configPaths } from '~/utils/configPaths'
+import { II18nLanguage, IWindowList } from '~/utils/enum'
+const dirname = path.dirname(fileURLToPath(import.meta.url))
+
+let newVersion = ''
+const updateAvailableHandler = async (info: updater.UpdateInfo) => {
+  const lang = picgo.getConfig<string>(configPaths.settings.language) || II18nLanguage.ZH_CN
+  let updateLog = ''
+  try {
+    const url =
+      lang === II18nLanguage.ZH_CN
+        ? 'https://release.piclist.cn/currentVersion.md'
+        : 'https://release.piclist.cn/currentVersion_en.md'
+    const res = await axios.get(url)
+    updateLog = res.data
+  } catch (e: any) {
+    logger.error(e)
+  }
+
+  const maxLogLength = 8000
+  let displayLog = updateLog
+  let truncatedNote = ''
+
+  if (updateLog.length > maxLogLength) {
+    const truncatePoint = updateLog.lastIndexOf('\n', maxLogLength)
+    displayLog = updateLog.substring(0, truncatePoint > 0 ? truncatePoint : maxLogLength)
+    truncatedNote =
+      lang === II18nLanguage.ZH_CN
+        ? '\n\n... (更多详情请查看完整更新日志)'
+        : '\n\n... (See full changelog for more details)'
+  }
+
+  windowManager.create(IWindowList.UPDATE_WINDOW)
+  const updateWindow = windowManager.get(IWindowList.UPDATE_WINDOW)!
+
+  updateWindow.webContents.once('did-finish-load', () => {
+    updateWindow.webContents.send('SHOW_UPDATE_INFO', {
+      type: 'update-available',
+      title: lang === II18nLanguage.ZH_CN ? '发现新版本' : 'New Update Available',
+      version: info.version,
+      releaseNotes: displayLog + truncatedNote,
+    })
+  })
+
+  updateWindow.show()
+}
+
+const progressHandler = (progressObj: updater.ProgressInfo) => {
+  const percent = {
+    progress: progressObj.percent,
+  }
+  const settingWindow = windowManager.get(IWindowList.SETTING_WINDOW)
+  const updateWindow = windowManager.get(IWindowList.UPDATE_WINDOW)
+
+  if (settingWindow) {
+    settingWindow.webContents.send('updateProgress', percent)
+  }
+  if (updateWindow) {
+    updateWindow.webContents.send('UPDATE_PROGRESS', percent)
+  }
+}
+
+const downloadedHandler = () => {
+  const lang = picgo.getConfig<string>(configPaths.settings.language) || II18nLanguage.ZH_CN
+
+  if (!windowManager.has(IWindowList.UPDATE_WINDOW)) {
+    windowManager.create(IWindowList.UPDATE_WINDOW)
+  }
+  const updateWindow = windowManager.get(IWindowList.UPDATE_WINDOW)!
+
+  const sendUpdateInfo = () => {
+    updateWindow.webContents.send('SHOW_UPDATE_INFO', {
+      type: 'update-downloaded',
+      title: lang === II18nLanguage.ZH_CN ? '更新已下载' : 'Update Downloaded',
+      message:
+        lang === II18nLanguage.ZH_CN
+          ? '更新已下载完成，将在下次重启应用时安装。是否立即重启？'
+          : 'The update has been downloaded and will be installed on the next app restart. Would you like to restart now?',
+    })
+  }
+
+  if (updateWindow.webContents.isLoading()) {
+    updateWindow.webContents.once('did-finish-load', sendUpdateInfo)
+  } else {
+    sendUpdateInfo()
+  }
+
+  if (!updateWindow.isVisible()) {
+    updateWindow.show()
+  }
+}
+
+export async function setupAutoUpdater() {
+  if (!isPortable()) {
+    updater.autoUpdater.setFeedURL({
+      provider: 'generic',
+      url: 'https://release.piclist.cn/latest',
+      channel: 'latest',
+    })
+
+    updater.autoUpdater.forceDevUpdateConfig = true
+    updater.autoUpdater.autoDownload = false
+
+    updater.autoUpdater.on('update-available', updateAvailableHandler)
+
+    updater.autoUpdater.on('download-progress', progressHandler)
+
+    updater.autoUpdater.on('update-downloaded', downloadedHandler)
+
+    updater.autoUpdater.on('error', err => {
+      logger.error(err)
+    })
+  }
+}
+
+export async function checkUpdateAndNotify(): Promise<void> {
+  const url = 'https://release.piclist.cn/latest/latest.yml'
+  const res = await axios.get(url, {
+    headers: { 'Content-Type': 'application/octet-stream' },
+    responseType: 'text',
+  })
+  const latest = yaml.parseDocument(res.data).toJSON() as unknown as updater.UpdateInfo
+  const currentVersion = pkg.version
+  if (latest.version !== currentVersion) {
+    newVersion = latest.version
+    updateAvailableHandler(latest)
+  }
+}
+
+export async function downloadAndInstallUpdate(): Promise<void> {
+  const baseUrl = 'https://release.piclist.cn/latest'
+  const fileMap = {
+    'win32-x64': `PicList-Setup-${newVersion.replace(/^v/, '')}-x64-portable.zip`,
+    'win32-arm64': `PicList-Setup-${newVersion.replace(/^v/, '')}-arm64-portable.zip`,
+  } as Record<string, string>
+  const file = fileMap[`${process.platform}-${process.arch}`]
+  if (!file) {
+    logger.error('No update file available for this platform and architecture.')
+    return
+  }
+  const apiUrl = `https://api.github.com/repos/Kuingsmile/PicList/releases/tags/v${newVersion.replace(/^v/, '')}`
+  const apiReqConfig: AxiosRequestConfig = {
+    headers: {
+      Accept: 'application/vnd.github.v3+json',
+      'User-Agent': 'PicList-Updater',
+    },
+  }
+  try {
+    progressHandler({ percent: 0 } as updater.ProgressInfo)
+    const releaseRes = await axios.get(apiUrl, apiReqConfig)
+    const assets: { name: string; digest?: string }[] = releaseRes.data.assets || []
+    const matchedAsset = assets.find(asset => asset.name === file)
+    if (!matchedAsset || !matchedAsset.digest) {
+      logger.error('No sha256 digest found for the update asset.')
+      return
+    }
+    const expectedHash = matchedAsset.digest.split(':')[1].toLowerCase()
+    const targetFilePath = path.join(defaultDir(), file)
+    if (!fs.existsSync(targetFilePath)) {
+      const downloadRes = await axios.get(`${baseUrl}/${file}`, {
+        responseType: 'arraybuffer',
+        headers: { 'Content-Type': 'application/octet-stream' },
+        onDownloadProgress: progressEvent => {
+          const percentCompleted = (progressEvent.loaded / (progressEvent.total || 1)) * 100
+          progressHandler({ percent: percentCompleted } as updater.ProgressInfo)
+        },
+      })
+      await fs.writeFile(targetFilePath, downloadRes.data)
+    }
+    const fileBuffer = await fs.readFile(targetFilePath)
+    const sha256 = createHash('sha256').update(fileBuffer).digest('hex').toLowerCase()
+    if (sha256 !== expectedHash) {
+      await fs.remove(targetFilePath)
+      logger.error('Downloaded file hash does not match expected hash. Update aborted.')
+      return
+    }
+    progressHandler({ percent: 100 } as updater.ProgressInfo)
+    const zipFilePath = path.join(dirname, '../../../resources/7za.exe').replace('app.asar', 'app.asar.unpacked')
+    await fs.copyFile(zipFilePath, path.join(defaultDir(), '7za.exe'))
+    spawn(
+      'cmd',
+      [
+        '/C',
+        `"timeout /t 2 /nobreak >nul && "${path.join(defaultDir(), '7za.exe')}" x -o"${exeDir()}" -y "${path.join(defaultDir(), file)}" & start "" "${exePath()}""`,
+      ],
+      {
+        detached: true,
+        shell: true,
+        stdio: 'ignore',
+      },
+    ).unref()
+    app.quit()
+  } catch (error: any) {
+    await fs.remove(path.join(defaultDir(), file))
+    logger.error('Error downloading update:', String(error))
+  }
+}
diff --git a/src/main/lifeCycle/index.ts b/src/main/lifeCycle/index.ts
index 2265d009..44c4d5e0 100644
--- a/src/main/lifeCycle/index.ts
+++ b/src/main/lifeCycle/index.ts
@@ -10,14 +10,13 @@ import shortKeyHandler from 'apis/app/shortKey/shortKeyHandler'
 import { createTray, setDockMenu } from 'apis/app/system'
 import { uploadChoosedFiles, uploadClipboardFiles } from 'apis/app/uploader/apis'
 import windowManager from 'apis/app/window/windowManager'
-import axios from 'axios'
 import { app, globalShortcut, Notification, protocol, screen } from 'electron'
-import updater from 'electron-updater'
 import fs from 'fs-extra'
 
 import busEventList from '~/events/busEventList'
 import { rpcServer } from '~/events/rpc'
 import { startFileServer, stopFileServer } from '~/fileServer'
+import { setupAutoUpdater } from '~/lifeCycle/autoUpdater'
 import fixPath from '~/lifeCycle/fixPath'
 import UpDownTaskQueue from '~/manage/datastore/upDownTaskQueue'
 import getManageApi from '~/manage/Main'
@@ -28,7 +27,7 @@ import { isAutoStartEnabled, setAutoStart } from '~/utils/autoStart'
 import beforeOpen from '~/utils/beforeOpen'
 import clipboardPoll from '~/utils/clipboardPoll'
 import { configPaths } from '~/utils/configPaths'
-import { II18nLanguage, IRemoteNoticeTriggerHook, ISartMode, IWindowList } from '~/utils/enum'
+import { IRemoteNoticeTriggerHook, ISartMode, IWindowList } from '~/utils/enum'
 import { getUploadFiles } from '~/utils/handleArgv'
 import { initI18n } from '~/utils/handleI18n'
 import { notificationList } from '~/utils/notification'
@@ -58,105 +57,7 @@ const handleStartUpFiles = (argv: string[], cwd: string) => {
   return false
 }
 
-updater.autoUpdater.setFeedURL({
-  provider: 'generic',
-  url: 'https://release.piclist.cn/latest',
-  channel: 'latest',
-})
-
-updater.autoUpdater.forceDevUpdateConfig = true
-updater.autoUpdater.autoDownload = false
-
-updater.autoUpdater.on('update-available', async (info: updater.UpdateInfo) => {
-  const lang = picgo.getConfig<string>(configPaths.settings.language) || II18nLanguage.ZH_CN
-  let updateLog = ''
-  try {
-    const url =
-      lang === II18nLanguage.ZH_CN
-        ? 'https://release.piclist.cn/currentVersion.md'
-        : 'https://release.piclist.cn/currentVersion_en.md'
-    const res = await axios.get(url)
-    updateLog = res.data
-  } catch (e: any) {
-    logger.error(e)
-  }
-
-  const maxLogLength = 8000
-  let displayLog = updateLog
-  let truncatedNote = ''
-
-  if (updateLog.length > maxLogLength) {
-    const truncatePoint = updateLog.lastIndexOf('\n', maxLogLength)
-    displayLog = updateLog.substring(0, truncatePoint > 0 ? truncatePoint : maxLogLength)
-    truncatedNote =
-      lang === II18nLanguage.ZH_CN
-        ? '\n\n... (更多详情请查看完整更新日志)'
-        : '\n\n... (See full changelog for more details)'
-  }
-
-  windowManager.create(IWindowList.UPDATE_WINDOW)
-  const updateWindow = windowManager.get(IWindowList.UPDATE_WINDOW)!
-
-  updateWindow.webContents.once('did-finish-load', () => {
-    updateWindow.webContents.send('SHOW_UPDATE_INFO', {
-      type: 'update-available',
-      title: lang === II18nLanguage.ZH_CN ? '发现新版本' : 'New Update Available',
-      version: info.version,
-      releaseNotes: displayLog + truncatedNote,
-    })
-  })
-
-  updateWindow.show()
-})
-
-updater.autoUpdater.on('download-progress', progressObj => {
-  const percent = {
-    progress: progressObj.percent,
-  }
-  const settingWindow = windowManager.get(IWindowList.SETTING_WINDOW)
-  const updateWindow = windowManager.get(IWindowList.UPDATE_WINDOW)
-
-  if (settingWindow) {
-    settingWindow.webContents.send('updateProgress', percent)
-  }
-  if (updateWindow) {
-    updateWindow.webContents.send('UPDATE_PROGRESS', percent)
-  }
-})
-
-updater.autoUpdater.on('update-downloaded', () => {
-  const lang = picgo.getConfig<string>(configPaths.settings.language) || II18nLanguage.ZH_CN
-
-  if (!windowManager.has(IWindowList.UPDATE_WINDOW)) {
-    windowManager.create(IWindowList.UPDATE_WINDOW)
-  }
-  const updateWindow = windowManager.get(IWindowList.UPDATE_WINDOW)!
-
-  const sendUpdateInfo = () => {
-    updateWindow.webContents.send('SHOW_UPDATE_INFO', {
-      type: 'update-downloaded',
-      title: lang === II18nLanguage.ZH_CN ? '更新已下载' : 'Update Downloaded',
-      message:
-        lang === II18nLanguage.ZH_CN
-          ? '更新已下载完成，将在下次重启应用时安装。是否立即重启？'
-          : 'The update has been downloaded and will be installed on the next app restart. Would you like to restart now?',
-    })
-  }
-
-  if (updateWindow.webContents.isLoading()) {
-    updateWindow.webContents.once('did-finish-load', sendUpdateInfo)
-  } else {
-    sendUpdateInfo()
-  }
-
-  if (!updateWindow.isVisible()) {
-    updateWindow.show()
-  }
-})
-
-updater.autoUpdater.on('error', err => {
-  logger.error(err)
-})
+await setupAutoUpdater()
 
 class LifeCycle {
   async #beforeReady() {
diff --git a/src/main/utils/updateChecker.ts b/src/main/utils/updateChecker.ts
index 04724e9e..95019875 100644
--- a/src/main/utils/updateChecker.ts
+++ b/src/main/utils/updateChecker.ts
@@ -1,6 +1,8 @@
 import picgo from '@core/picgo'
 import updater from 'electron-updater'
 
+import { isPortable } from '~/apis/core/datastore/dirs'
+import { downloadAndInstallUpdate } from '~/lifeCycle/autoUpdater'
 import { configPaths } from '~/utils/configPaths'
 
 const updateChecker = async () => {
@@ -11,7 +13,11 @@ const updateChecker = async () => {
   }
   if (showTip) {
     try {
-      await updater.autoUpdater.checkForUpdatesAndNotify()
+      if (!isPortable()) {
+        await updater.autoUpdater.checkForUpdatesAndNotify()
+      } else {
+        await downloadAndInstallUpdate()
+      }
     } catch (_err) {}
   }
 }