I always disable Windows defender on my machines via the registry editor, but this time I have run into a problem: first of all, I happen to have a Home version of Windows 11, so I had to install the registry editor manually, then when I try editing the value, it comes up with the following error: error1

I have read about this, and everybody states that I have to run regedit as administrator (which I do) and give myself permissions over the "Windows defender" folder. When editing permissions I get the following error: enter image description here

Keep in mind that I am using the Admin account, which is the only account in the system. After doing a little more research, I have found that you should be able to change the owneer of the file, but in my case this is a dead end: enter image description here enter image description here

Is there any solution to that?

  • did you try to disable it via the GUI or via GPO (not sure if the latter is possible in the home edition)?
    – Albin
    Jul 6, 2022 at 20:09
  • 2
    "I had to install the registry editor manually" - The registry editor exists on every edition and version of Windows. So what exactly have you installed? The only thing I know for certain is that it wasn't the registry editor.
    – Ramhound
    Jul 6, 2022 at 20:21
  • @Ramhound Maybe not the editor itself, but something that supports it. When I first tried opening it, my PC didn't know what is "regedit", and there was nothing in the search as well. Maybe it was because I installed one of the earlier builds of Windows 11, idk. Jul 7, 2022 at 7:57
  • So what exactly did you enable because your theory of it due to being an insider preview build is also incorrect. Every relevant version of Windows has had the registry editor.
    – Ramhound
    Jul 7, 2022 at 11:19
  • @Ramhound After some time I have remembered that I have install the group policy editor, not the registry. I don't get why you make such a big deal out of this, it is irrelevant to the question. Jul 7, 2022 at 13:48

1 Answer 1


In Windows 11 Home, Windows Defender is enforced and that is why you cannot disable it via the registry (by Microsoft Design).

If you wish, you can get a very good 3rd party Anti Virus and installing that will put Windows Defender in the background. That suffices for most uses.

  • Unless you're creating a honeypot to see how quickly your PC can be subverted... ;-) Jul 6, 2022 at 22:33
  • That is a real pitty if it is truly impossible :(. Installing the other antivirus is not a good option, because the whole idea is to get rid of useless apps, which do noting except load up your cpu and memmory occasionally. Jul 7, 2022 at 8:01
  • 1
    Windows Defender is a top notch AV app, not useless at all.
    – John
    Jul 7, 2022 at 10:20
  • @John That is true, but for me any antivirus software is just an annoying resource eater, since with enough caution there is generally no threat of getting a virus. Jul 7, 2022 at 13:50
  • It would be foolish not to have any AV. My CPU runs at <5% more than 95% of the time (all machines) so no resource issue.
    – John
    Jul 7, 2022 at 14:30

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