High CPU Load from Outlook with Kaspersky Endpoint Security on macOS

[Hansaplast]

Hello, 

My Outlook is running with 100% CPU load since the upgrade to Big Sur. 

Every now and then the load goes down for a short time, then up again. 

• No synchronization errors are displayed, the status does not hang either. 

• Load is so high even in offline mode 

• After a new start of Outlook it behaves quietly for a few minutes, then the load goes up. 

• Now and then the load goes to below 10% for 2-5 minutes, then stable again to full load. 

 

Current versions are 

• macOS: Big Sur 11.3.1 

• Microsoft Outlook for Mac: 16.48 

 

The computer and therefore the Outlook are completely fresh installed. I have tried various tips from the Microsoft Community Forum: 

• Do not show messages in conversations 

• Privacy - disable optional connected experiences incl. telemetry data 

• ... 

 

Workaround: The other installed programs are manageable. Microsoft Office and Teams, OpenVPN, Firefox, Kaspersky Internet Security. 

While troubleshooting, I noticed: Quit Kaspersky Endpoint Security - problem gone. After a new start of Kaspersky it takes a few minutes again, then the CPU Load is high again. 

 

Kaspersky Endpoint Security for Mac (11.1.0.210a) 

• Database up to date 

• Real-time protection enabled 

• Encrypted traffic scanning not allowed (turning this on makes no difference)

Unfortunately, there are no more settings here.

 

Now I have BigSur as the changed factor, Kaspersky as the culprit, but Outlook with the high processor load.

 

Can anyone help me further here? How can I continue to troubleshoot this? 

 

Greetings 

 

Hansaplast

[Berny]

@Hansaplast Welcome.

Please continue here :

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