Microsoft Defender Antivirus (known as Windows Defender Antivirus before Windows 10 May 2020 Update or Windows Defender before Windows 10 Creators Update) is an anti-malware component of Microsoft Windows. It was first released as a downloadable free anti-spyware program for Windows XP, and was later shipped with Windows Vista and Windows 7. It has evolved into a full antivirus program, replacing Microsoft Security Essentials, as part of Windows 8 and later versions.
Why to disable Windows Defener?
Some apps and games need windows defender to be disables do you can use them 🙂