360 Security Guard is a completely free online security assistant tool software launched by Qihoo. It features several powerful functions such as detecting and eliminating popular trojans, cleaning malicious comments and system plugins, managing application software, Kaspersky antivirus, real-time system protection, and fixing system vulnerabilities. Additionally, it provides specific auxiliary functions such as comprehensive system diagnosis, popup plugin immunity, cleaning usage traces, and system restoration. It also offers a comprehensive diagnostic report for the system, making it convenient for users to promptly identify issues. It truly provides all-round system security protection for every user. The feature database has been updated to 1.0.1.2028.