Baidu Antivirus : Baidu Antivirus is fully free antivirus protection software that utilizes all the advances of modern cloud computation to deliver rock-solid protection to all users. 

Baidu Antivirus offers an easy to use interface with several advanced configuration options as well as quarantine of infected files. It also has an extremely small memory footprint, so you can actually do other things while it is running on your computer. Other features include automatic updates, Host Intrusion Prevention System (HIPS), scan reports and more.

The program combines the Baidu Antivirus Engine and Baidu Cloud Security Engine with the Avira Antivirus engine to provide you with complete protection against all online threats.
Baidu Antivirus is fully free antivirus protection software that utilizes all the advances of modern cloud computation to deliver rock-solid protection to all users.

• Free download, free upgrade, and free service
• 11M installation package
• 10M system resource consumption ensures a smooth and fast running PC
• Cloud security rapidly identifies unknown virus
• Ultrafast response to the latest virus
• Support for English
• Independent local virus database detects local virus precisely
• Intelligently auto choose different engines
• Precisely detects and removes 99% threats
• Baidu Antivirus is compatible with 10 mainstream security software perfectly