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How to permanently disable Windows Defender

Q

quina123

Member
Is there a way to completely turn off windows defender. Its really irritating to delete files but cannot because windows defender won't let go of it. It also constantly makes the cpu peek at 10% all the time, not allowing me to open even a single folder at times.
 
quina123 said:
Its really irritating to delete files but cannot because windows defender won't let go of it. It also constantly makes the cpu peek at 10% all the time, not allowing me to open even a single folder at times.
Click to expand...

Won't let you delete because it is scanning them?
10%? You sure it is defender?
Something else is wrong with your system if you can't even open a single folder with 10% load.
 
Haven't had a problem with it yet. Have you opened the app to see what it's doing with it's giving you problems?
 
I forgot to mention I'm running win10.
And I meant to say it was peaking at 100% at times. preventing me from eveing opening folder with windows explorer restarting because it stopped responding.

Just set the Windows Defender to ignore those files.
Click to expand...

I'd like too, but I'd rather have it off, so it doesn't come back around the mountain.

Files aren't system files, its mostly files downloaded from the internet.
 
I have never seen defender push that much cpu usage. If you sort task manager, what process is using the most cpu? How often does this happen?
 
Ketchup said:
I have never seen defender push that much cpu usage. If you sort task manager, what process is using the most cpu? How often does this happen?
Click to expand...

I also wondered about this, on my win 10 box, I download 4 viruses (samples to test AVs, and a linux ISO (900MB), just to see what defender would do, and load never went higher than 4% on a 3.4GHz machine, and only 1 core was being used, and it didn't last long.

Something fishy is going on with OP's system.
 
the third party antivirus and ShutUp10 are really good.
I'm trying shutup10 right now
I've sorted the list in task manager something called Anitmalware Service Executable is always up.
 
I recently had to do this myself, as Windows Defender kept trying to download definitions from Windows update despite being disabled by Norton..

Anyway, the method I used only works for the pro version I think as it requires the gpedit.msc function.

If you have the home version, you may have to disable it via the registry..

Directions for both methods
 
quina123 said:
the third party antivirus and ShutUp10 are really good.
I'm trying shutup10 right now
I've sorted the list in task manager something called Anitmalware Service Executable is always up.
Click to expand...

It is also possible that this is a virus. Since Defender has been going by that same executable name for years, a lot of virus/malware designers love to give their creation that name. Have you ever completed a full scan with it?

As mentioned, Windows Defender will automatically disable itself if it sees another antivirus running. Another suggestion would be to try a free trail of something good (Norton and Kaspersky come to mind) and see if they find anything.

There is a long discussion over here, but I have pulled out part that may be pertinent to your issue:
Excessive CPU utilization by Windows Defender’s Antimalware Service (MsMpEng.exe) usually means that Windows Defender’s real-time protection (on-access scanning) is being overworked by having to scan files that are being accessed by an unwanted or errant process. The troublesome process might turn out to be malware, a bad device driver, or an overactive logging utility – but in most cases the problematic process will be a component of a third-party AV app, and this can be removed by uninstalling the third-party app and then downloading and running its cleanup utility.
Click to expand...
http://answers.microsoft.com/en-us/...to-start/14d43f26-c682-4b3d-80b6-59ae754b8649
 
I've got Norton antivirus now. And I believe windoes defdner is in the shadows now. No more holding onto files I want to delete and peeking 100% anymore. the A/V has solved now I hoping.

Thank you everyone for all your help! 😀
 
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