diff --git a/src/main/index.ts b/src/main/index.ts
index 699074e279..4412c28af2 100644
--- a/src/main/index.ts
+++ b/src/main/index.ts
@@ -19,7 +19,6 @@ import process from 'node:process'
 import { registerIpc } from './ipc'
 import { agentService } from './services/agents'
 import { apiServerService } from './services/ApiServerService'
-import { configManager } from './services/ConfigManager'
 import mcpService from './services/MCPService'
 import { nodeTraceService } from './services/NodeTraceService'
 import {
@@ -42,12 +41,12 @@ const logger = loggerService.withContext('MainEntry')
 /**
  * Disable hardware acceleration if setting is enabled
  */
-//FIXME should not use configManager, use usePreference instead
+//FIXME should not use preferenceService before initialization
 //TODO 我们需要调整配置管理的加载位置，以保证其在 preferenceService 初始化之前被调用
-const disableHardwareAcceleration = configManager.getDisableHardwareAcceleration()
-if (disableHardwareAcceleration) {
-  app.disableHardwareAcceleration()
-}
+// const disableHardwareAcceleration = preferenceService.get('app.disable_hardware_acceleration')
+// if (disableHardwareAcceleration) {
+//   app.disableHardwareAcceleration()
+// }
 
 /**
  * Disable chromium's window animations
diff --git a/src/main/ipc.ts b/src/main/ipc.ts
index 62b1c57527..ac8d469b09 100644
--- a/src/main/ipc.ts
+++ b/src/main/ipc.ts
@@ -169,7 +169,7 @@ export function registerIpc(mainWindow: BrowserWindow, app: Electron.App) {
     windows.forEach((window) => {
       window.webContents.session.setSpellCheckerLanguages(languages)
     })
-    configManager.set('spellCheckLanguages', languages)
+    preferenceService.set('app.spell_check.languages', languages)
   })
 
   // launch on boot
@@ -264,12 +264,15 @@ export function registerIpc(mainWindow: BrowserWindow, app: Electron.App) {
     }
   })
 
-  ipcMain.handle(IpcChannel.Config_Set, (_, key: string, value: any, isNotify: boolean = false) => {
-    configManager.set(key, value, isNotify)
+  ipcMain.handle(IpcChannel.Config_Set, (_, key: string) => {
+    // Legacy config handler - will be deprecated
+    logger.warn(`Legacy Config_Set called for key: ${key}`)
   })
 
   ipcMain.handle(IpcChannel.Config_Get, (_, key: string) => {
-    return configManager.get(key)
+    // Legacy config handler - will be deprecated
+    logger.warn(`Legacy Config_Get called for key: ${key}`)
+    return undefined
   })
 
   // // theme
@@ -280,7 +283,7 @@ export function registerIpc(mainWindow: BrowserWindow, app: Electron.App) {
   ipcMain.handle(IpcChannel.App_HandleZoomFactor, (_, delta: number, reset: boolean = false) => {
     const windows = BrowserWindow.getAllWindows()
     handleZoomFactor(windows, delta, reset)
-    return configManager.getZoomFactor()
+    return preferenceService.get('app.zoom_factor')
   })
 
   // clear cache
diff --git a/src/main/services/AppUpdater.ts b/src/main/services/AppUpdater.ts
index a9fcab82e5..d63d7ed60c 100644
--- a/src/main/services/AppUpdater.ts
+++ b/src/main/services/AppUpdater.ts
@@ -1,9 +1,8 @@
 import { preferenceService } from '@data/PreferenceService'
 import { loggerService } from '@logger'
 import { isWin } from '@main/constant'
-import { configManager } from '@main/services/ConfigManager'
 import { getIpCountry } from '@main/utils/ipService'
-import { generateUserAgent } from '@main/utils/systemInfo'
+import { generateUserAgent, getClientId } from '@main/utils/systemInfo'
 import { FeedUrl } from '@shared/config/constant'
 import { UpgradeChannel } from '@shared/data/preference/preferenceTypes'
 import { IpcChannel } from '@shared/IpcChannel'
@@ -39,7 +38,7 @@ export default class AppUpdater {
     autoUpdater.requestHeaders = {
       ...autoUpdater.requestHeaders,
       'User-Agent': generateUserAgent(),
-      'X-Client-Id': configManager.getClientId()
+      'X-Client-Id': getClientId()
     }
 
     autoUpdater.on('error', (error) => {
diff --git a/src/main/services/NodeTraceService.ts b/src/main/services/NodeTraceService.ts
index 70fd92a28b..ec74baee90 100644
--- a/src/main/services/NodeTraceService.ts
+++ b/src/main/services/NodeTraceService.ts
@@ -1,3 +1,4 @@
+import { preferenceService } from '@data/PreferenceService'
 import { loggerService } from '@logger'
 import { isDev } from '@main/constant'
 import { CacheBatchSpanProcessor, FunctionSpanExporter } from '@mcp-trace/trace-core'
@@ -7,7 +8,6 @@ import { context, trace } from '@opentelemetry/api'
 import { BrowserWindow, ipcMain } from 'electron'
 import * as path from 'path'
 
-import { ConfigKeys, configManager } from './ConfigManager'
 import { spanCacheService } from './SpanCacheService'
 
 export const TRACER_NAME = 'CherryStudio'
@@ -91,8 +91,13 @@ export function openTraceWindow(topicId: string, traceId: string, autoOpen = tru
   } else {
     traceWin.loadFile(path.join(__dirname, '../renderer/traceWindow.html'))
   }
+  let unsubscribeLanguage: (() => void) | null = null
+
   traceWin.on('closed', () => {
-    configManager.unsubscribe(ConfigKeys.Language, setLanguageCallback)
+    if (unsubscribeLanguage) {
+      unsubscribeLanguage()
+      unsubscribeLanguage = null
+    }
     try {
       traceWin?.destroy()
     } finally {
@@ -106,13 +111,15 @@ export function openTraceWindow(topicId: string, traceId: string, autoOpen = tru
       topicId,
       modelName
     })
-    traceWin!.webContents.send('set-language', { lang: configManager.get(ConfigKeys.Language) })
-    configManager.subscribe(ConfigKeys.Language, setLanguageCallback)
+    traceWin!.webContents.send('set-language', { lang: preferenceService.get('app.language') })
+    unsubscribeLanguage = preferenceService.subscribeChange('app.language', setLanguageCallback)
   })
 }
 
-const setLanguageCallback = (lang: string) => {
-  traceWin!.webContents.send('set-language', { lang })
+const setLanguageCallback = (lang: string | null) => {
+  if (lang) {
+    traceWin?.webContents.send('set-language', { lang })
+  }
 }
 
 export const setTraceWindowTitle = (title: string) => {
diff --git a/src/main/services/WindowService.ts b/src/main/services/WindowService.ts
index 6c4ed12db0..ceb977a136 100644
--- a/src/main/services/WindowService.ts
+++ b/src/main/services/WindowService.ts
@@ -14,7 +14,6 @@ import { join } from 'path'
 
 import icon from '../../../build/icon.png?asset'
 import { titleBarOverlayDark, titleBarOverlayLight } from '../config'
-import { configManager } from './ConfigManager'
 import { contextMenu } from './ContextMenu'
 import { initSessionUserAgent } from './WebviewService'
 
@@ -87,7 +86,7 @@ export class WindowService {
         webSecurity: false,
         webviewTag: true,
         allowRunningInsecureContent: true,
-        zoomFactor: configManager.getZoomFactor(),
+        zoomFactor: preferenceService.get('app.zoom_factor'),
         backgroundThrottling: false
       }
     })
@@ -120,10 +119,10 @@ export class WindowService {
   }
 
   private setupSpellCheck(mainWindow: BrowserWindow) {
-    const enableSpellCheck = configManager.get('enableSpellCheck', false)
+    const enableSpellCheck = preferenceService.get('app.spell_check.enabled')
     if (enableSpellCheck) {
       try {
-        const spellCheckLanguages = configManager.get('spellCheckLanguages', []) as string[]
+        const spellCheckLanguages = preferenceService.get('app.spell_check.languages')
         spellCheckLanguages.length > 0 && mainWindow.webContents.session.setSpellCheckerLanguages(spellCheckLanguages)
       } catch (error) {
         logger.error('Failed to set spell check languages:', error as Error)
@@ -175,7 +174,7 @@ export class WindowService {
 
   private setupWindowEvents(mainWindow: BrowserWindow) {
     mainWindow.once('ready-to-show', () => {
-      mainWindow.webContents.setZoomFactor(configManager.getZoomFactor())
+      mainWindow.webContents.setZoomFactor(preferenceService.get('app.zoom_factor'))
 
       // show window only when laucn to tray not set
       const isLaunchToTray = preferenceService.get('app.tray.on_launch')
@@ -204,14 +203,14 @@ export class WindowService {
     // and resize ipc
     //
     mainWindow.on('will-resize', () => {
-      mainWindow.webContents.setZoomFactor(configManager.getZoomFactor())
+      mainWindow.webContents.setZoomFactor(preferenceService.get('app.zoom_factor'))
       mainWindow.webContents.send(IpcChannel.Windows_Resize, mainWindow.getSize())
     })
 
     // set the zoom factor again when the window is going to restore
     // minimize and restore will cause zoom reset
     mainWindow.on('restore', () => {
-      mainWindow.webContents.setZoomFactor(configManager.getZoomFactor())
+      mainWindow.webContents.setZoomFactor(preferenceService.get('app.zoom_factor'))
     })
 
     // ARCH: as `will-resize` is only for Win & Mac,
@@ -219,7 +218,7 @@ export class WindowService {
     // but `resize` will fliker the ui
     if (isLinux) {
       mainWindow.on('resize', () => {
-        mainWindow.webContents.setZoomFactor(configManager.getZoomFactor())
+        mainWindow.webContents.setZoomFactor(preferenceService.get('app.zoom_factor'))
         mainWindow.webContents.send(IpcChannel.Windows_Resize, mainWindow.getSize())
       })
     }
diff --git a/src/main/services/__tests__/AppUpdater.test.ts b/src/main/services/__tests__/AppUpdater.test.ts
index 2611cf608c..80a9b252f3 100644
--- a/src/main/services/__tests__/AppUpdater.test.ts
+++ b/src/main/services/__tests__/AppUpdater.test.ts
@@ -40,7 +40,8 @@ vi.mock('@main/utils/locales', () => ({
 }))
 
 vi.mock('@main/utils/systemInfo', () => ({
-  generateUserAgent: vi.fn(() => 'test-user-agent')
+  generateUserAgent: vi.fn(() => 'test-user-agent'),
+  getClientId: vi.fn(() => 'test-client-id')
 }))
 
 vi.mock('electron', () => ({
diff --git a/src/main/utils/systemInfo.ts b/src/main/utils/systemInfo.ts
index 84db4efed7..427501726a 100644
--- a/src/main/utils/systemInfo.ts
+++ b/src/main/utils/systemInfo.ts
@@ -1,6 +1,8 @@
+import { preferenceService } from '@data/PreferenceService'
 import { app } from 'electron'
 import macosRelease from 'macos-release'
 import os from 'os'
+import { v4 as uuidv4 } from 'uuid'
 
 /**
  * System information interface
@@ -90,3 +92,19 @@ export function generateUserAgent(): string {
 
   return `Mozilla/5.0 (${systemInfo.osString}; ${systemInfo.archString}) AppleWebKit/537.36 (KHTML, like Gecko) CherryStudio/${systemInfo.appVersion} Chrome/124.0.0.0 Safari/537.36`
 }
+
+/**
+ * Get or generate a unique client ID
+ * @returns {string} Client ID
+ */
+export function getClientId(): string {
+  let clientId = preferenceService.get('app.user.id')
+
+  // If it's the placeholder value, generate a new UUID
+  if (!clientId || clientId.length === 0) {
+    clientId = uuidv4()
+    preferenceService.set('app.user.id', clientId)
+  }
+
+  return clientId
+}
diff --git a/src/main/utils/zoom.ts b/src/main/utils/zoom.ts
index d75b31724e..969859a7f9 100644
--- a/src/main/utils/zoom.ts
+++ b/src/main/utils/zoom.ts
@@ -1,13 +1,12 @@
+import { preferenceService } from '@data/PreferenceService'
 import type { BrowserWindow } from 'electron'
 
-import { configManager } from '../services/ConfigManager'
-
 export function handleZoomFactor(wins: BrowserWindow[], delta: number, reset: boolean = false) {
   if (reset) {
     wins.forEach((win) => {
       win.webContents.setZoomFactor(1)
     })
-    configManager.setZoomFactor(1)
+    preferenceService.set('app.zoom_factor', 1)
     return
   }
 
@@ -15,12 +14,12 @@ export function handleZoomFactor(wins: BrowserWindow[], delta: number, reset: bo
     return
   }
 
-  const currentZoom = configManager.getZoomFactor()
+  const currentZoom = preferenceService.get('app.zoom_factor')
   const newZoom = Number((currentZoom + delta).toFixed(1))
   if (newZoom >= 0.5 && newZoom <= 2.0) {
     wins.forEach((win) => {
       win.webContents.setZoomFactor(newZoom)
     })
-    configManager.setZoomFactor(newZoom)
+    preferenceService.set('app.zoom_factor', newZoom)
   }
 }