
I managed to disable it using Autoruns under the services tab there is an entry WinDefend, untick the box and reboot. I ended up writing a small script to take ownership of the executable and deny read and execute access rights for it. I have written the batch file and registry files that should completely disable Windows Defender in Windows However, I recently encountered a situation where setting a Group Policy had no effect, and the Antimalware executable kept running and eating into my CPU. You can download the files to disable and re-enable defender from Gist. If you ever want to re-enable Defender, change to on both lines. It's been tested on Windows 10 Home as well. Here's a registry file that contains the changes made by gpedit. Unfortunately, Windows 10 Home lacks the necessary tools.
#How to enable windows defeder nodefender update
Note: This may not work any more as of feature update By far the most effective and clean way to permanently disable Windows Defender in Windows 10 is via Group Policy, as described by Aaron Hoffman.
#How to enable windows defeder nodefender how to
This detour into how to stop the Windows Defender service is interesting and all: but i've already stopped it, and my PC is still misbehaving. And this is where i'm going to have to stop to save my work. The leading A means Allowedand the permissions are two-letter codes.

Looking first at who they apply to, a random blog article decode some of them archive. Each ACE is a set of 5 semicolon terminated settings, followed by who it applies to. The D: means this is a discretionary access control list. This is quite the ugly blob, and it's completely undocumented by Microsoft, but we'll have a stab at decoding it. Using this articleI changed the startup type for the Defender services and drivers!! Here's a brief run-down. And even though in Settings it may appear to be on, the Service is not running.

If you then try to open Windows Defender you'll see this.

I can't find any information on how to disable Windows Defender in Windows There is some information about how to do it in the previews, but the configuration pages have changed with the final release. Connect and share knowledge within a single location that is structured and easy to search. Super User is a question and answer site for computer enthusiasts and power users.
