Even if Windows Defender is offered for free and it has decent protection features, some people might prefer other applications to secure their system from spyware and other threats.
By using the 'Select a language' button, you can choose the language of the manual you want to view. The most recent version of the ESET Live Grid® scanning engine utilizes speed and precision to keep your computer safe.
You can use it to scan your system from time to time, to have a 2nd solution make a clean-up, just in case Kaspersky missed something.
Kasperksy anti-virus has good capability of detection ,infact has a good fast detection but the removel and the self-defence of kaspersky is very weak and cannot provide satisfactory protection when virus like autorun executed because sometime infected self and the virus spread rapidly but the kasper internet security is very excellent .........
In Windows 10 you can turn it off by first opening it.
Click the search icon (magnifying glass) in the bottom-left corner of the screen, type "Windows Defender" and open it.