Download Baidu Antivirus 5.9 – Lightweight Cloud-Based Antivirus for Windows

Baidu Antivirus 5.9 is a lightweight, cloud-powered antivirus solution for Windows that provides real-time protection against viruses, malware, trojans, and ransomware without slowing down your system. By leveraging cloud-based threat intelligence, it can detect and block new threats faster than traditional signature-based antivirus engines.

The program features a minimal interface and a low system footprint, making it an excellent choice for older computers or users who want reliable security without the heavy resource usage of larger security suites. It runs quietly in the background and alerts you only when action is needed.

Baidu Antivirus 5.9 also includes a USB shield to block threats from external drives, a startup manager to keep your boot time fast, and a real-time web shield to protect against malicious websites during browsing.

Key Features

• Cloud-based threat detection for fast identification of new and emerging malware
• Real-time protection against viruses, trojans, ransomware, and spyware
• USB shield to automatically scan and block threats from external drives
• Web protection to block malicious and phishing websites during browsing
• Startup manager to optimize system boot time
• Very low memory and CPU usage — ideal for older or low-spec machines
• Simple interface with one-click scanning and quick threat removal

How to Install

1. Click the download button above to save the Baidu Antivirus 5.9 installer to your computer.
2. Run the setup file and follow the installation wizard to complete the process.
3. Launch Baidu Antivirus from the system tray or Start menu after installation.
4. Allow the program to update its cloud threat database on first launch.
5. Click Full Scan to perform an initial system scan and remove any detected threats.