It took over five years, but Microsoft has finally fixed a bug that caused Windows Defender to drain CPU resources when Mozilla’s Firefox browser is active. In 2018, Mozilla staff reported that ...

When using Windows Performance Recorder (WPR), which checks system and application behavior and resource usage, if the CPU usage rate of 'MsMpEng.exe', which is the Microsoft Defender execution ...

Here I was playing some Far Cry 2 on my machine (so not exactly a resource hog these days), when suddenly the screen goes black, I can't Ctrl Alt Delete, or get the task manager or anything, and the ...

Why it matters: Microsoft has released a crucial bug-fixing update to its Windows Defender antimalware application. Its arrival means that some unlucky Firefox users should now get a much smoother and ...

The Antimalware Service Executable, also known as MsMpEng.exe, is a critical component of Windows Defender that runs in the background to protect your system from malware and other security threats.

Microsoft has fixed a five-year-old bug in Windows Defender that caused significant CPU usage spikes for users of the Mozilla Firefox browser, Neowin reports. Firefox developer Yannis Juglaret ...

Turns out Firefox's bad resource rap was not its fault Firefox's bad rap for being a resource hog might be the fault of the software king of the world Microsoft. A CPU bug affecting Firefox users on ...

The problem arose when Firefox was running, leading Windows Defender’s Antimalware Service Executable (Msmpeng.exe) to act up, causing a significant increase in CPU usage. Users reported that their ...

There are two common factors that can cause Antimalware Service Executable to take up too much CPU resources, from its real time feature and Full scan feature. Real time protection Feature is ...