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Questions tagged [windows-defender]

In Windows 8 and later versions of Windows, Windows Defender is a built in antivirus software product that replaces Microsoft Security Essentials. Before Windows 8, Windows Defender featured antispyware capabilities and was not offering antivirus protection.

27
votes
5answers
47k views

How to turn off Windows Defender permanently

Windows Defender keeps blocking a third-party program that I know isn't a threat. All my attempts to disable Windows Defender have failed. I've tried to: Go in the Windows Defender option and ...
64
votes
7answers
224k views

Disabling Microsoft Antimalware service

I can't disable the Microsoft Antimalware service (MsMpSvc/MsMpEng.exe). I tried using services.msc, but the Startup Type drop-down is grayed out and I can't change it to Disabled nor stop the service....
12
votes
3answers
12k views

How to add the Windows defender into Windows Explorer's right click menu to scan a particular drive/folder/file on demand in Windows 8?

There is no option in Windows Explorer to scan a particular drive (or file) on demand by right clicking on it in Windows Explorer as we had in Windows 7 with Microsoft Security Essentials or like ...
16
votes
2answers
4k views

Automatic Windows Defender Updates with Manual Windows/Microsoft Updates

I've got Windows/Microsoft Update on my Windows 7 laptop set to notify me when updates are available but not to do anything automatically. I also have Windows Defender running and it seems to have ...
5
votes
5answers
6k views

Does Windows Defender update if Windows Update is set to manual?

It looks like the Windows Defender in Windows 8 won't upgrade the signatures automatically, if Windows Update is set to "Notify, but don't install the upgrades". Is my impression real? Is there is a ...
6
votes
5answers
7k views

No Microsoft Security Essentials for Windows 8. So, how to access similar Defender features/settings?

I just installed Windows 8 Pro. One of the first things I went to do is install Microsoft Security Essentials, thinking I still needed add-on security software, but I've learned here that it isn't ...
2
votes
2answers
2k views

How do I completely turn off Windows Defender in Windows 10?

As discussed here, Windows Defender seems to be the cause that make File Explorer become very slow to use. So I want to turn it off completely - using Real-time Protection off is just a temporary ...
23
votes
4answers
17k views

Windows 10 Creators Update - Ignore specific “performance & health” recommendations?

Since the recent "Creators Update," I have this icon my system tray: Turns out it's because I have my laptop set to never sleep while plugged in. How can I set it to not "warn" me about this ...
12
votes
4answers
80k views

How do I install Windows Defender/MSE on Server 2012?

On earlier versions of Windows client and server you could install Microsoft Security Essentials, free antivirus from Microsoft. In Windows 8 client, it is integrated into Windows Defender. However, I ...
6
votes
1answer
2k views

Windows Defender: Disable real time; keep scheduled and on demand scanning

I just upgraded to Win 10 (RTM build). I have disabled the built in AV's (Defender) real time protection because I do not run it, never did and have never gotten a virus (and I've had a computer for ...
3
votes
1answer
2k views

How to find specifics of what Defender detected in real time protection?

Windows Defender very quickly popped up a notification saying it has taken action to prevent against malware. I need to know the details. This happened while I was downloading pictures from Google ...
1
vote
1answer
509 views

How to disable (signature-based) real-time scanning and leave behavior monitoring enabled in Windows Defender?

I believe that Windows Defender included in Windows 10 implements some forms of protection other than signature-based threat detection. Two Group Policy settings indicates this: "Turn on behavior ...
8
votes
1answer
8k views

How can you turn Core Isolation Memory Integrity back off again in Windows 10 build 17127 and later

In Windows 10 Insider Preview builds, in Windows Defender Security Center, after the Fall Creators Update, Windows Insiders will see a new feature Core Isolation. It's possible to turn the Memory ...
15
votes
6answers
26k views

Uninstall Windows Defender in Windows 7

Can Windows Defender be permanently uninstalled/removed from my current Windows 7 installation, it can't be done through the Add/Remove Programs Wizard.
8
votes
5answers
7k views

Scheduling silent hourly Windows Defender definition updates using Task Scheduler on Windows 8

I want to update Windows Defender's definitions every hour and came up with the idea of using the Task Scheduler to execute the Defender update service with the signature update argument. ~/Windows ...
7
votes
3answers
16k views

How do I stop getting updates for Windows Malicious Software Removal Tool and Windows Defender?

I have disabled the service for Windows Defender and I have configured the Action Center to not monitor or notify me about Spyware and Unwanted software protection. Windows Updates however really ...
5
votes
2answers
2k views

How to monitor Windows Defender real time protection?

I love how Microsoft made third party anti virus protection obsolete with Defender - it just works. Unfortunately for me as a developer this sometimes means it works a bit too well, and slows down ...
8
votes
2answers
14k views

Windows Defender vs. Security Essentials in Windows 8

What is the difference between Windows Defender on Windows 8 and Microsoft Security Essentials? They practically look alike, so is there a need to install Security Essentials?
3
votes
1answer
5k views

How to edit hosts file in Windows 8? Defender says malware detected

I've tried editing it in the same way as in Windows 7. E.g. opening Notepad/Notepad++ as Administrator and then opening the file and save it. Right after saving it Windows Defender will say Malware ...
0
votes
1answer
5k views

MsMpEng.exe (Windows Defender?) uses a lot of CPU at startup and runs two instances on a single core machine

I'm using Windows XP Professional SP2 on a single core AMD64 processor, and I've got two instances of MsMpEng.exe starting up when I start up and log in. They use 64MB and 32MB of ram and 140MB and ...
5
votes
1answer
19k views

How can I disable Windows Defender using the command line? [duplicate]

I am looking for a way to disable Windows Defender on Windows 8/8.1/10 using the command line. Everything I've found so far has involved using a GUI at some point, and this isn't useful for a process ...
2
votes
2answers
549 views

Toggle Windows Defender real time protection via Desktop shortcut

Unfortunately sometimes it is needed to disable (and later enable again) the (excellent) Windows defender real time protection. I require 7 clicks to enable or disable Defender real time protection: ...
1
vote
1answer
865 views

add windows defender service exception for internet radio

I'm streaming internet radio from here: http://www.protonradio.com/player/live/player.php and windows defender service is running pretty hard inspecting the stream as it comes in. I trust the stream,...