360 Security Guard is a completely free online security auxiliary tool software launched by Qihoo Company. It features several powerful functions including detecting and eliminating popular trojans, cleaning up malicious comments and system plugins, managing application software, Kaspersky antivirus, real-time system protection, and repairing system vulnerabilities. Additionally, it provides specific auxiliary functions such as comprehensive system diagnosis, popup plugin immunity, cleaning usage traces, and system restore. It also offers a comprehensive diagnostic report for the system, helping users to promptly identify issues. This truly provides every user with all-round system security protection. The feature database has been updated to 1.0.1.2125.