diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 497da50..7b614c5 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -89,6 +89,9 @@ jobs:
         if: matrix.os == 'windows-latest'
         run: pnpm run build:app && pnpm exec electron-builder --win --publish=never
 
+      - name: Verify packaged runtime dependencies
+        run: pnpm run verify:package-runtime
+
       - name: Cleanup Mac artifacts
         if: matrix.os == 'macos-latest'
         run: |
diff --git a/package.json b/package.json
index e377f5d..44edfef 100644
--- a/package.json
+++ b/package.json
@@ -46,6 +46,7 @@
     "version:plugins:beta": "node scripts/bump-plugins.mjs prerelease --preid=beta",
     "version:plugins:rc": "node scripts/bump-plugins.mjs prerelease --preid=rc",
     "version:plugins:release": "node scripts/bump-plugins.mjs patch --git-commit --git-tag",
+    "verify:package-runtime": "node scripts/verify-packaged-runtime-deps.mjs",
     "publish:plugins": "node scripts/publish-plugins.mjs --tag=latest",
     "publish:plugins:dry": "node scripts/publish-plugins.mjs --tag=latest --dry-run",
     "publish:plugins:next": "node scripts/publish-plugins.mjs --tag=next",
@@ -88,13 +89,34 @@
     "@giopic/s3-plugin": "workspace:^",
     "@vueuse/core": "^14.2.1",
     "animate.css": "^4.1.1",
+    "asynckit": "^0.4.0",
     "axios": "^1.15.2",
+    "call-bind-apply-helpers": "^1.0.2",
+    "combined-stream": "^1.0.8",
     "dayjs": "^1.11.20",
+    "delayed-stream": "^1.0.0",
+    "dunder-proto": "^1.0.1",
     "electron-better-ipc": "^2.0.1",
     "electron-log": "^5.4.3",
     "electron-store": "^11.0.2",
     "electron-updater": "^6.8.3",
+    "es-define-property": "^1.0.1",
+    "es-errors": "^1.3.0",
+    "es-object-atoms": "^1.1.1",
+    "es-set-tostringtag": "^2.1.0",
+    "follow-redirects": "^1.16.0",
+    "form-data": "^4.0.5",
+    "function-bind": "^1.1.2",
+    "get-intrinsic": "^1.3.0",
+    "get-proto": "^1.0.1",
+    "gopd": "^1.2.0",
+    "has-symbols": "^1.1.0",
+    "has-tostringtag": "^1.0.2",
+    "hasown": "^2.0.2",
+    "math-intrinsics": "^1.1.0",
     "mime": "^4.1.0",
+    "mime-db": "^1.52.0",
+    "mime-types": "^2.1.35",
     "p-limit": "^7.3.0",
     "pinia": "^3.0.4",
     "pinia-plugin-persistedstate-2": "^2.0.32",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 4c4917f..c25658c 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -32,12 +32,27 @@ importers:
       animate.css:
         specifier: ^4.1.1
         version: 4.1.1
+      asynckit:
+        specifier: ^0.4.0
+        version: 0.4.0
       axios:
         specifier: ^1.15.2
         version: 1.15.2
+      call-bind-apply-helpers:
+        specifier: ^1.0.2
+        version: 1.0.2
+      combined-stream:
+        specifier: ^1.0.8
+        version: 1.0.8
       dayjs:
         specifier: ^1.11.20
         version: 1.11.20
+      delayed-stream:
+        specifier: ^1.0.0
+        version: 1.0.0
+      dunder-proto:
+        specifier: ^1.0.1
+        version: 1.0.1
       electron-better-ipc:
         specifier: ^2.0.1
         version: 2.0.1
@@ -50,9 +65,57 @@ importers:
       electron-updater:
         specifier: ^6.8.3
         version: 6.8.3
+      es-define-property:
+        specifier: ^1.0.1
+        version: 1.0.1
+      es-errors:
+        specifier: ^1.3.0
+        version: 1.3.0
+      es-object-atoms:
+        specifier: ^1.1.1
+        version: 1.1.1
+      es-set-tostringtag:
+        specifier: ^2.1.0
+        version: 2.1.0
+      follow-redirects:
+        specifier: ^1.16.0
+        version: 1.16.0
+      form-data:
+        specifier: ^4.0.5
+        version: 4.0.5
+      function-bind:
+        specifier: ^1.1.2
+        version: 1.1.2
+      get-intrinsic:
+        specifier: ^1.3.0
+        version: 1.3.0
+      get-proto:
+        specifier: ^1.0.1
+        version: 1.0.1
+      gopd:
+        specifier: ^1.2.0
+        version: 1.2.0
+      has-symbols:
+        specifier: ^1.1.0
+        version: 1.1.0
+      has-tostringtag:
+        specifier: ^1.0.2
+        version: 1.0.2
+      hasown:
+        specifier: ^2.0.2
+        version: 2.0.2
+      math-intrinsics:
+        specifier: ^1.1.0
+        version: 1.1.0
       mime:
         specifier: ^4.1.0
         version: 4.1.0
+      mime-db:
+        specifier: ^1.52.0
+        version: 1.52.0
+      mime-types:
+        specifier: ^2.1.35
+        version: 2.1.35
       p-limit:
         specifier: ^7.3.0
         version: 7.3.0
diff --git a/scripts/verify-packaged-runtime-deps.mjs b/scripts/verify-packaged-runtime-deps.mjs
new file mode 100644
index 0000000..1959b29
--- /dev/null
+++ b/scripts/verify-packaged-runtime-deps.mjs
@@ -0,0 +1,110 @@
+import { spawnSync } from 'node:child_process'
+import { existsSync, mkdtempSync, readdirSync, rmSync, statSync } from 'node:fs'
+import { tmpdir } from 'node:os'
+import path from 'node:path'
+import { fileURLToPath, pathToFileURL } from 'node:url'
+
+const rootDir = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..')
+const releaseDir = path.join(rootDir, 'release')
+
+const requiredPackages = [
+  'axios',
+  'follow-redirects',
+  'form-data',
+  'proxy-from-env',
+  'asynckit',
+  'combined-stream',
+  'delayed-stream',
+  'es-set-tostringtag',
+  'hasown',
+  'mime-types',
+  'mime-db',
+  'es-errors',
+  'get-intrinsic',
+  'has-tostringtag',
+  'call-bind-apply-helpers',
+  'es-define-property',
+  'es-object-atoms',
+  'function-bind',
+  'get-proto',
+  'gopd',
+  'has-symbols',
+  'math-intrinsics',
+  'dunder-proto',
+]
+
+const importChecks = [
+  'node_modules/axios/lib/adapters/http.js',
+  'node_modules/form-data/lib/form_data.js',
+]
+
+function findAppAsars(dir, results = []) {
+  if (!existsSync(dir))
+    return results
+
+  for (const entry of readdirSync(dir)) {
+    const fullPath = path.join(dir, entry)
+    const stats = statSync(fullPath)
+    if (stats.isDirectory()) {
+      findAppAsars(fullPath, results)
+    }
+    else if (entry === 'app.asar') {
+      results.push(fullPath)
+    }
+  }
+
+  return results
+}
+
+function packageJsonPath(extractedDir, packageName) {
+  return path.join(extractedDir, 'node_modules', ...packageName.split('/'), 'package.json')
+}
+
+function extractAsar(asarPath, destination) {
+  const pnpm = process.platform === 'win32' ? 'pnpm.cmd' : 'pnpm'
+  const result = spawnSync(pnpm, ['exec', 'asar', 'extract', asarPath, destination], {
+    cwd: rootDir,
+    stdio: 'inherit',
+  })
+
+  if (result.status !== 0) {
+    throw new Error(`Failed to extract ${path.relative(rootDir, asarPath)}`)
+  }
+}
+
+async function verifyAsar(asarPath) {
+  const tmpRoot = mkdtempSync(path.join(tmpdir(), 'giopic-app-asar-'))
+  const extractedDir = path.join(tmpRoot, 'app')
+
+  try {
+    extractAsar(asarPath, extractedDir)
+
+    const missing = requiredPackages.filter(packageName => !existsSync(packageJsonPath(extractedDir, packageName)))
+    if (missing.length > 0) {
+      throw new Error(`Missing runtime packages in app.asar: ${missing.join(', ')}`)
+    }
+
+    for (const target of importChecks) {
+      const targetPath = path.join(extractedDir, ...target.split('/'))
+      if (!existsSync(targetPath)) {
+        throw new Error(`Missing import check target in app.asar: ${target}`)
+      }
+      await import(pathToFileURL(targetPath).href)
+    }
+
+    console.log(`Verified packaged runtime dependencies: ${path.relative(rootDir, asarPath)}`)
+  }
+  finally {
+    rmSync(tmpRoot, { recursive: true, force: true })
+  }
+}
+
+const asarPaths = findAppAsars(releaseDir)
+
+if (asarPaths.length === 0) {
+  throw new Error('No app.asar files found under release/. Run electron-builder before this verification.')
+}
+
+for (const asarPath of asarPaths) {
+  await verifyAsar(asarPath)
+}
diff --git a/src/main/services/AppUpdater.test.ts b/src/main/services/AppUpdater.test.ts
index 309d61c..8fea172 100644
--- a/src/main/services/AppUpdater.test.ts
+++ b/src/main/services/AppUpdater.test.ts
@@ -102,6 +102,33 @@ describe('appUpdater', () => {
     expect(pkg.default.autoUpdater.checkForUpdates).toHaveBeenCalled()
   })
 
+  it('should catch startup update check errors', async () => {
+    const pkg = await import('electron-updater')
+    const { getStore } = await import('@/main/stores')
+    const logger = await import('@/main/utils/logger')
+
+    let readyToShow: (() => Promise<void>) | undefined
+    mockWindow.once = vi.fn((_event, callback) => {
+      readyToShow = callback as () => Promise<void>
+    }) as any
+
+    vi.mocked(getStore).mockImplementation((key: string) => {
+      if (key === 'updateSource')
+        return 'github'
+      if (key === 'autoUpdate')
+        return true
+      return false
+    })
+    vi.mocked(pkg.default.autoUpdater.checkForUpdates).mockRejectedValue(new Error('missing update config'))
+
+    const { AppUpdater } = await import('@/main/services/AppUpdater')
+
+    const _updater = new AppUpdater(mockWindow)
+    await expect(readyToShow?.()).resolves.toBeUndefined()
+
+    expect(logger.default.error).toHaveBeenCalledWith('[update] Error checking for updates:', expect.any(Error))
+  })
+
   it('should setup update server with cn source', async () => {
     const pkg = await import('electron-updater')
     const { getStore } = await import('@/main/stores')
diff --git a/src/main/services/AppUpdater.ts b/src/main/services/AppUpdater.ts
index 34472e6..0750ae9 100644
--- a/src/main/services/AppUpdater.ts
+++ b/src/main/services/AppUpdater.ts
@@ -126,8 +126,7 @@ export class AppUpdater {
     const updateOnThisStart = getStore('updateAtNext')
     this.win.once('ready-to-show', async () => {
       if (getStore('autoUpdate') || updateOnThisStart) {
-        await autoUpdater.checkForUpdates()
-
+        await this.checkForUpdates()
         this.silentUpdateCheck = false
       }
     })