diff --git a/electron/package.json b/electron/package.json
index 66f9115..a601866 100644
--- a/electron/package.json
+++ b/electron/package.json
@@ -13,7 +13,8 @@
     "stage:offline-runtime": "node ./scripts/stage-offline-runtime.mjs",
     "prepare:runtime": "node ./scripts/prepare-runtime.mjs",
     "verify:runtime": "node ./scripts/verify-runtime.mjs",
-    "dist": "pnpm run prepare:runtime && pnpm run build && pnpm run gen:icons && pnpm run verify:runtime && electron-builder --win --publish never"
+    "verify:win-package": "node ./scripts/verify-win-package.mjs",
+    "dist": "pnpm run prepare:runtime && pnpm run build && pnpm run gen:icons && pnpm run verify:runtime && electron-builder --win --publish never && pnpm run verify:win-package"
   },
   "dependencies": {
     "d3": "^7.9.0",
@@ -81,12 +82,19 @@
     ],
     "win": {
       "icon": "build/icon.ico",
+      "artifactName": "${productName}-Windows-x64-${version}.${ext}",
       "target": [
         {
           "target": "portable",
           "arch": [
             "x64"
           ]
+        },
+        {
+          "target": "zip",
+          "arch": [
+            "x64"
+          ]
         }
       ]
     },
diff --git a/electron/scripts/verify-win-package.mjs b/electron/scripts/verify-win-package.mjs
new file mode 100644
index 0000000..93aa604
--- /dev/null
+++ b/electron/scripts/verify-win-package.mjs
@@ -0,0 +1,76 @@
+import fs from 'fs'
+import path from 'path'
+import { fileURLToPath } from 'url'
+
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = path.dirname(__filename)
+const electronRoot = path.resolve(__dirname, '..')
+const distRoot = path.join(electronRoot, 'dist')
+const unpackedRoot = path.join(distRoot, 'win-unpacked')
+
+const pkg = JSON.parse(fs.readFileSync(path.join(electronRoot, 'package.json'), 'utf8'))
+const productName = pkg.build?.productName || pkg.productName || pkg.name
+
+const requiredFiles = [
+  path.join(unpackedRoot, `${productName}.exe`),
+  path.join(unpackedRoot, 'ffmpeg.dll'),
+  path.join(unpackedRoot, 'icudtl.dat'),
+  path.join(unpackedRoot, 'resources', 'app.asar'),
+  path.join(unpackedRoot, 'resources', 'backend', 'web2.py'),
+]
+
+const pythonCandidates = [
+  path.join(unpackedRoot, 'resources', 'backend', 'python', 'python.exe'),
+  path.join(unpackedRoot, 'resources', 'backend', 'python', 'Scripts', 'python.exe'),
+]
+
+const ffmpegCandidates = [
+  path.join(unpackedRoot, 'resources', 'backend', 'ffmpeg', 'ffmpeg.exe'),
+  path.join(unpackedRoot, 'resources', 'backend', 'ffmpeg', 'bin', 'ffmpeg.exe'),
+  path.join(unpackedRoot, 'resources', 'backend', 'tools', 'ffmpeg', 'ffmpeg.exe'),
+  path.join(unpackedRoot, 'resources', 'backend', 'tools', 'ffmpeg', 'bin', 'ffmpeg.exe'),
+]
+
+const errors = []
+
+if (!fs.existsSync(unpackedRoot)) {
+  errors.push(`missing unpacked app directory: ${unpackedRoot}`)
+}
+
+for (const file of requiredFiles) {
+  if (!fs.existsSync(file)) errors.push(`missing required file: ${file}`)
+}
+
+if (!pythonCandidates.some((p) => fs.existsSync(p))) {
+  errors.push(`missing bundled Python executable:\n${pythonCandidates.map((p) => `- ${p}`).join('\n')}`)
+}
+
+if (!ffmpegCandidates.some((p) => fs.existsSync(p))) {
+  errors.push(`missing bundled backend ffmpeg.exe:\n${ffmpegCandidates.map((p) => `- ${p}`).join('\n')}`)
+}
+
+const distEntries = fs.existsSync(distRoot) ? fs.readdirSync(distRoot, { withFileTypes: true }) : []
+const rootExeArtifacts = distEntries
+  .filter((e) => e.isFile() && e.name.toLowerCase().endsWith('.exe'))
+  .map((e) => e.name)
+const rootZipArtifacts = distEntries
+  .filter((e) => e.isFile() && e.name.toLowerCase().endsWith('.zip'))
+  .map((e) => e.name)
+
+if (!rootExeArtifacts.length) {
+  errors.push(`missing single-file portable exe in dist root: ${distRoot}`)
+}
+
+if (!rootZipArtifacts.length) {
+  errors.push(`missing complete lazy-package zip in dist root: ${distRoot}`)
+}
+
+if (errors.length) {
+  console.error('[verify:win-package] Windows package check failed:\n')
+  for (const error of errors) console.error(`- ${error}\n`)
+  process.exit(1)
+}
+
+console.log('[verify:win-package] OK: Windows portable exe, zip package, Electron DLLs, Python, and ffmpeg are present.')
+console.log(`[verify:win-package] portable exe: ${rootExeArtifacts.join(', ')}`)
+console.log(`[verify:win-package] lazy zip: ${rootZipArtifacts.join(', ')}`)