In Windows Defender on Windows 7/8/8.1, I used to be able to go into the program's administrator settings and turn off the program. I would then install my anti-virus of choice, which is usually the latest Kaspersky Internet Security client. However, it appears as though you cannot fully disable Windows Defender. It will eventually turn itself back on...what a great feature! (sarcasm). So, when I check my security settings in Control Panel, I will see both Kaspersky and Windows Defender active, with that special warning telling me that running two anti-virus programs simultaneously could cause issues. I understand this, which is why I want to disable the piece of garbage Windows Defender. So, my question is....is Windows Defender designed to run alongside 3rd party anti-viruses now? Is that why they don't give you a way to fully disable it?...because it's not necessary? Or, is this some push to get me to use crappy security software that will do minimal to protect my PC? Now, I did find the registry key to disable Windows Defender permanently. So, I did do that. But, you'd have to think that the average consumer isn't going to be editing the registry. Did Microsoft not expect users to install other anti-virus software? Something doesn't seem right here. Let me know if I'm missing something. Thanks for the help!