Microsoft Outlook Communications over 20% CPU

Task Manager shows that Microsoft Outlook Communications process is constantly over 20%. I believe this is causing my fan to spool and it is annoying.

I think HxTsr.exe is to blame.

I'm running Windows 10 on a Sony Vaio Pro 13. April 12, 2016 update.

What can I do to fix this?

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Hi,

Thank you for being part of Microsoft Community.

To perform common maintenance tasks in Windows, such as cleaning up unused files and shortcuts, try using the System Maintenance troubleshooter to automatically find and fix problems. For example, the System Maintenance troubleshooter looks for unused files and shortcuts that you can clean up or remove so that your computer can run faster.

I would suggest you to run the system maintenance troubleshooter.

Follow these steps:

a) Press the ‘Windows + W’ key on the keyboard.

b) Type troubleshooter in the search box and then press enter.

c) Click system and security and run the System maintenance troubleshooter.

Please revert if you face any issues with Windows in future.

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Thank you for the response.

I ran the System maintenance troubleshooter, however the problem persists.

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I have the same problem on Lenovo Y50-70, Windows 10. Microsoft Outlook Communications takes over 15% CPU which force the fan to work hard and makes annoying noises. I don't even use Outlook.

System maintenance shows nothing.

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Hi Georgi,

Thank you for being part of Microsoft Community.

Place the computer in clean boot and then check if it helps.

 

Perform a clean boot to check if any third party application is causing the issue, as clean boot helps in eliminating software conflicts.


How to troubleshoot problem by performing clean boot in Windows:
https://support.microsoft.com/en-us/kb/929135

Note:  Refer "How to reset the computer to start normally after clean boot troubleshooting" to reset the computer to start as normal after troubleshooting

Hope this information was helpful. Please get back to us with the above details so that we can assist you further.

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I performed a clean boot of Windows.

Microsoft Outlook Communications is still taking ~20% of CPU resources.

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Hello,

Thank you for getting back to us with your response.

Have you completely performed Clean boot?

We from our end want to be absolutely sure that you have preformed the whole process of Clean boot. Clean boot is quiet a big process to follow. But the main intension behind performing Clean boot is to find the one software that might be causing this issue. Many of the times such issues are caused by third party software's. Clean boot is of the solutions through which we can identify the software that might be causing the problem.

So we request you to once again perform the whole process of Clean boot to find the software and let us know the status of the issue. We will be glad to assist you further.

Thank you.

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My computer is currently in a "clean boot" state after preforming the steps from the link in a previous post.

Task manger is showing Microsoft Outlook Communications Is over 20% cpu usage. Is this normal?

What do I do next?

Edit: After a few minutes it appear Microsft Outlook Communications has settled down. It is now at 0%.

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Hello,


Thank you for updating us with the status of the issue and we are happy to know that your issue is resolved now.

For further assistance related to Windows feel free to post your queries in Microsoft forums. We will be glad to assist you.

Thank You.

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Hello,

I am using a Surface Pro 4 with Windows 10.

Whenever the Outlook mail app from the store is open, the process "Microsoft Outlook Communications" is showing up in the task manager, consuming 15% of my CPU (Core i5, 4GB RAM).

As soon as I close the mail app, the process vanishes again.

Since I often leave open store apps for convenience, I discovered that over the last 24 hours the mail app has consumed 25% of my battery, over the last week around 10%. I thought that is quite a lot, considering I only have it open in the background while doing a lot of work in OneNote and Chrome.

Is there a way to solve this problem?

What is the process "Microsoft Outlook Communications" doing all the time in the background? I see that it is also writing on the SSD at some 2MB/s, but I really cannot figure out why.

I have the mail accounts set up for over 6 months now, so it can't be possible that the app is still downloading all my mails in the background.

Best regards,

Bastian

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I was able to remedy my situation by removing all accounts from the Mail app and adding them again. I suspect that the Mail app was having trouble syncing my multiple Gmail accounts.

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Last updated September 12, 2021 Views 23,227 Applies to: