High CPU usage when typing a message in Outlook

Anonymous
2024-11-06T10:00:58+00:00

OS: Win 11 Pro

Office: 2016 Pro

Hi everyone,

CPU activity goes to 16-22% when typing a message in Outlook 2016 and returns to 1 % when typing stops.

Deactivating (all) add-ins and Graphic acceleration did not solve the issue.

Deactivating spell check options did not cure the problem either.

The problem seems to be specific to Win 11 and does not occur on Win 10 OS.

If anyone has any suggestion on how to solve this issue...
PDMC

***moved from Outlook / Windows / Classic Outlook for Windows / For business***

Outlook | Windows | Classic Outlook for Windows | For business

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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  1. Anonymous
    2025-02-19T17:36:54+00:00

    Same Issue here.

    But there's no hope this will be fixed. Today I installed the Office Desktop-apps from my MS-365-Subscription on a fresh installed Windows 11-System. As a surprise, no "classic" Outlook-Client could be found.

    The "new" Outlook was installed instead as the default email program.This new application is terrible and a nightmare in terms of data.

    Many users use PST files, which are not yet fully supported (read access only, but still). But that doesn't matter. Microsoft doesn't want people to work with the classic Outlook. But they offer a link to install the classic outlook separately.

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  2. Anonymous
    2025-02-09T12:55:53+00:00

    I have the same problem and tried all of the listed solutions. Nothing helped. I'm using 365 on a brand new computer using Outlook version 2501 build 18429.20114. The CPU is a Intel Core i714700F, 20 cores.

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  3. Anonymous
    2025-02-04T06:29:43+00:00

    We should also all get in touch with our local IT magazines, explain the Outlook bug to them and ask them to publish about it. That may impose some pressure on Microsoft and prevent others from switching from other e-mail clients to buggy Outlook.

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  4. Anonymous
    2025-02-03T15:59:51+00:00

    Tried the fixes provided in Palcouk's thread. No luck.

    We have been barking over that bone since November last year, yet Microsoft still ignores the issue.

    Indeed, the solution may be leaving all Microsoft products once and for all. Market defective products and having users pay for fixes appears to be the company's business model.

    Again, the quick (and dirty) fix is to type the messages in the notepad, then copy it across into Outlook.
    Pretty stupid, I agree, but it will prevent your PC from going red hot, and draining the batteries on the blink of an eye.

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  5. Anonymous
    2025-01-31T13:38:23+00:00

    Hello again, dear other users suffering from Microsoft's Outlook bug,

    there is another thread where a user complains about the same issue: https://answers.microsoft.com/en-us/msoffice/forum/all/why-does-my-laptop-fan-start-every-time-i-type-an/f5acb9da-1375-48fe-b118-9e05ef8c8044

    Unfortunately, there is also no solution. It's really a pity with Microsoft. Maybe, it's time now to switch from Outlook to Thunderbird, because in fact, Outlook is unregarded and supportless and Microsoft does not care at all about bug reports. Why then pay for it?

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