The program is free to use, and Microsoft sends regular updates on Windows 10. Windows Defender protects your computer in realtime from not only viruses, but also ransomware, rootkits, trojans, spyware, and many forms of malicious attacks. This antivirus comes preinstalled with any version of Windows 10. The antivirus is developed by Microsoft to protect computers from virus threats that are running the Windows 10 operating system. Windows Defender (now known as Microsoft Defender Antivirus) is an always on, anti-malware software that guards your computer from external threats.
Our guide on how-to disable Windows Defender in Windows 10 What is Windows Defender?
