* Click Start > Programs > Windows Defender or launch from the system tray icon.
* Click on Tools & Settings > Options.
* Under Real-time protection options, uncheck the "Real-time protection" check box.
* Click Save.
* Go to Start > Control Panel > Security > Windows Defender, at the bottom of the Window Defenders page uncheck under Administrator Options "use Windows Defender" and then Save.
* (When we are done, you can re-enable Defender using the same steps but this time place a check next to "Turn on real-time protection" check box.)