I've noticed that the Antimalware Service Executable (MsMpEng.exe) is consuming a lot of RAM even when I'm not actively using it. Since I'm using Malwarebytes, I don't really need Windows Defender running, but despite my efforts to disable it through group policy or by turning off real-time protection, it just keeps reactivating itself. This is causing issues for me since I'm trying to stream on Twitch, and OBS often crashes when I run multiple apps, like my game and my face tracking software for vtubing. Is there a foolproof way to disable Windows Defender? Using two antivirus programs simultaneously is unnecessary and just eats up my RAM.
5 Answers
It sounds like the issue might not solely be with Windows Defender. What other antivirus are you using besides Malwarebytes? Sometimes, they can clash and cause performance issues.
Windows Defender is quite effective. Disabling it might expose you to more risks. If your RAM usage is high, consider checking what other programs are running when you boot your PC. You can also try installing a different antivirus if you really want to disable Defender.
Keep in mind that Windows Defender tends to use more resources during scheduled scans. If you haven’t done so, try scheduling those scans during times you're not using the PC. And if you're downloading sketchy files often, no antivirus program will save you from issues.
Before you decide to disable Windows Defender, think about what antivirus you're using to replace it. If it's a free version, it might not be as effective. A better approach would be to exclude certain folders from Defender's scans instead. That way, you can keep it running while managing your RAM usage better.
Could you clarify how much RAM it’s consuming? It might not be as much as you think. Also, if your PC is crashing, it might not just be a memory issue. You should check the overall memory usage to pinpoint the actual cause.
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