Newly bought computer has just installed 360 security guards, but also installed windows optimization master?

360 Security Guard: 360 Security Guard is a completely free security Internet accessibility software launched by Qihoo. It has anti-malware, plug-in management, virus detection, diagnosis and repair, protection. Wait for a few powerful features, as well as pop-up plug-in immunity, clean-up traces, and specific accessibility features such as system restore. And provide a comprehensive diagnostic report on the system, so that users can locate the problem in time, and truly provide comprehensive security protection for each user. Windows optimization master: Windows optimization master is a powerful system auxiliary software, which provides comprehensive, effective and simple system detection, system optimization, system cleaning, system maintenance four functional modules and several additional tools. Using Windows Optimizer, you can effectively help users understand their computer hardware and software information; simplify operating system setup steps; improve computer operating efficiency; clean up garbage generated during system operation; repair system failures and security vulnerabilities; maintain system operation. Both have their own advantages. In fact, they are all harmless.