

tmp just in case I regret this later!) as shown below for info. This caused Mac CPU to consistently sit at 150. We investigated the issue to find there was a bug where Mac timer expiration notifications were continuously being queued. I used the above fix and now all OK.! As you can see it blew away a bunch of *.plist files (saved them in. Thank you to everyone who shared and submitted feedback regarding Microsoft Edge’s high CPU usage when Microsoft Defender SmartScreen was enabled.

I've been having a very similar problem, especially after logout/login or reboot MS Outlook for Mac (v16.7 running on MacOS 10.12.6) would hog CPU > 400% and run VERY slow for HOURS until it would eventually settle down.
