| I'm so happy to see a thread on Windows Defender, because my org recently switched antivirus software and I can't wait to tell you how bad it is ! There's a hidden feature in Defender, that will delight any user : it can turn your 15" MacBook Pro into a full breakfast machine. Want pancakes ? Start a zoom call. While you wait for your favorite video conference app to start, don't hope to finish your docker pull/save/build in less than 30 times its usual time. Your laptop I/O will be so cripled that you might get better bandwith with a floppy disk drive (I'm exagerating a bit, but that's how it feels to go from 120MB/s to 4MB/s on a SSD). Our Mac IT is completely powerless. I never thought I would ever regret getting rid of Symantec. I was wrong. |
To not interfere with the user there allegedly is a group policy setting to limit the CPU usage and it is set to 15%. The thing is, it simply does not work. Every week my fans spin up to max, Defender hogs all my CPU cores, 25% of my GPU according to the Task Manager. Even typing becomes laggy.
The only way to stop it is to open Task Scheduler and end the scheduled task from there.