feishu.exe

What is feishu.exe?

feishu.exe is the executable for the Feishu desktop client, a collaboration app that combines chat, meetings, calendar, and file sharing. The Windows binary launches the Electron-based client and handles user authentication, syncing, and UI rendering.

Feishu employs a multi-process architecture with delineated renderer and helper processes to separate UI, network requests, and data tasks. This approach enhances responsiveness and keeps user data in sync with the cloud.

Types of Feishu Processes

• Main Process: User interface and app lifecycle (1 instance)
• Renderer Process: UI rendering for each window
• Background Sync Process: Keeps messages, files, and presence synchronized
• Network Service Process: Handles authentication and network requests
• Notification Process: Delivers desktop notifications
• Helper Processes: Updates, crash reporting, and auxiliary tasks

Is feishu.exe Safe?

Yes, feishu.exe is safe when it's the legitimate file from Feishu/ByteDance downloaded from official sources (feishu.cn or enterprise distribution).

Is feishu.exe a Virus or Malware?

The real feishu.exe is NOT a virus. However, malware occasionally masquerades with similar names. Always verify file location and digital signatures.

How to Tell if feishu.exe is Legitimate or Malware

1. File Location: Must be in C:\Program Files\Feishu\feishu.exe or C:\Program Files (x86)\Feishu\feishu.exe. Any feishu.exe elsewhere is suspicious.
2. Digital Signature: Right-click the file → Properties → Digital Signatures. Should show a valid signature from Feishu Ltd. or ByteDance.
3. Resource Usage: Normal usage is 3-15% CPU and 120-450 MB memory. Obvious spikes when idle are suspicious.
4. Behavior: Feishu should run when you launch the client. If you see feishu.exe running without user action, scan for malware.

Why Is feishu.exe Running on My PC?

feishu.exe runs to support active chats, meetings, and cloud syncing. It may also stay active in the background to deliver notifications and keep data in sync.

Reasons it's running:

• Active Feishu Use: You're actively using Feishu for chat, calls, or file sharing; the app spawns processes for responsiveness.
• Background Sync: Feishu keeps messages, status, and files synchronized with the cloud even when you are not actively typing.
• Startup Launch: Feishu is configured to launch on Windows startup or user login for quick access.
• Notifications: The app runs background services to deliver desktop notifications for messages and calendar events.
• Network / Security Tasks: Feishu performs background authentication, encryption checks, and token refresh in dedicated processes.

Can I Disable or Remove feishu.exe?

Yes, you can disable feishu.exe. You can stop it from running and uninstall Feishu if you no longer need it.

How to Stop feishu.exe

• End Feishu Window: Close Feishu via the window close button or File → Exit
• Close Background Tasks: In Task Manager, end feishu.exe or related processes
• Disable Startup: Task Manager → Startup tab → Disable Feishu
• Disable Background Sync: Feishu Settings → Preferences → General → Disable 'Run in background' or notifications

How to Uninstall Feishu

• ✔ Windows Settings → Apps → Apps & Features → Feishu → Uninstall
• ✔ Control Panel → Programs → Uninstall a program → Feishu → Uninstall
• ✔ Consider alternatives: Microsoft Teams, Slack, or Google Chat

Common Problems: High CPU or Memory Usage

If feishu.exe is consuming excessive resources:

Common Causes & Solutions

• Too Many Active Windows or Chats: Close unused Feishu windows or threads; reduce open chats and disable heavy features like live translation.
• Background Sync: Limit or pause background sync in Feishu settings; complete a large file transfer during off-peak hours.
• Outdated Feishu Version: Update Feishu to the latest version from the official site or auto-update channel.
• Malicious Extensions or Add-ins: If Feishu relies on integrated tools, disable suspicious add-ins or plugins; ensure extensions are from trusted sources.
• Hardware Acceleration: Try toggling hardware acceleration in Feishu Settings → General → Use hardware acceleration when available.
• Corrupted Cache: Clear Feishu cache: delete C:\Users\%USERNAME%\AppData\Roaming\Feishu or use in-app Clear Cache option

Related Processes