In the window that opens, select the “Virus & threat protection” among all available options.In the pop-up menu bar, search for and select the “Windows Security” section.Open the main user menu “Windows” by clicking on the “Start” button located on the “Taskbar” in the lower-left corner of the desktop.To temporarily disable the default built-in antivirus in “Windows 10”, you need to perform the following steps: How to disable Windows Defender via Windows Security? However, if you are determined to do it, here is a small guide on how to do it.
I do not recommend switching off your antivirus if you are spending a lot of time on the internet. There can be few reasons: you use another security software, installation of particular applications require disabling antivirus, or it just annoys you every time with its notifications. Sometimes you need to disable Windows Defender.