Windows 10 Defender Security Center is built into Windows 10. It combines the most common security features of Windows into an easy-to-use app allowing technical and non-technical users to view and protect their devices and data against many types of malware, including viruses and ransomware, hacker attacks, security threats, and more. Windows Defender Security Center is an application that provides a unified experience to view status and control security features, such as firewall, antivirus, performance monitor, and other products. Windows Defender Antivirus is the default anti-malware engine of Windows 10 that offers real-time protection against viruses and security threats. Installing a third-party antivirus will disable the Windows Defender Antivirus automatically, but it'll not affect the functionality of the Windows Defender Security Center. In the same way, disabling Windows Defender Antivirus or Windows Defender Firewall will not disable Security Center.