From: winstonmvp@gmail.com   
      
   Jim the Geordie wrote on 11/24/2025 10:00 AM:   
   > Using Process Explorer, I see that MsMpEng.exe is almost always the   
   > biggest memory user. I believe that that is M$ Defender.   
   > Does it need to be running all the time?   
      
   On Win10/11 it's Windows Security which Normally, yes and common to   
   anti-malware programs that run resident in  the background to protect the   
   entire system(Windows, downloading, internet surfing, installing   
   programs, etc.)   
     - i.e. protects a Windows device from malware(virus, spyware,   
   ransomeware, phishing), hackers, etc. using real-time virus and threat   
   protection, a firewall, and app and browser controls.   
      
   For reference purposes(when viewing in Services and also in Process   
   Explorer)on this device, the service and its related exe and components   
   use ~180-300 MB of memory when running resident. The latter(higher memory   
   use) when also running Windows Security 'Quick Scan' feature.   
      
   --   
   ...w¡ñ§±¤ñ   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)