You can turn off/disable Windows Defender:

Open Admin Command Prompt and type: gpedit.msc
Manoeuver to: Computer Configuration->Administrative Templates->Windows Components->Windows Defender
Double click on "Turn Off Windows Defender" and select "Enabled" then click "Apply"

WARNING: After turn off "Windows Defender", you might not be able to turn it back on. I suggest before trying this, make a backup image so you can restore to the way it was.

This post has been edited by DavidH: Oct 22 2015, 07:00 PM