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How can I remove resources.office.net running in the background on my Mac?

Jessica Rubio 30 Reputation points
2026-02-18T02:12:20.91+00:00

I am only using Word and Safari everyday doing simple things. I notice it runs full of my CPU in the background. I have erased and set up as new my Mac already but didn't help. I have also checked my log in items and uncheck everything and still same issueScreenshot 2026-02-17 at 5.33.40 PM

Microsoft 365 and Office | Word | For home | MacOS
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  1. Sumit D - IA 160K Reputation points Independent Advisor
    2026-02-20T02:50:44.2333333+00:00

    Hi Jessica,

    Great work!

    Is it suppose to be like it? I thought it was eliminating resources.office.net.

    This is normal since Microsoft Office needs the Internet for experiences. We have prevented a memory leak now causing the previous issue, which would not make the CPU usage 100% or memory.

    I hope this information helps. If you have any more questions, don't hesitate to reach out.

    Otherwise, please take a moment to rate the answer. Wishing you good luck!

    1 person found this answer helpful.
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  1. Xiang Li 0 Reputation points
    2026-02-19T11:50:43.8+00:00

    I recently discovered this issue too: extremely high memory usage when opening a Word document on my Mac, caused by the same source, from resources.office.net.

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  2. Sumit D - IA 160K Reputation points Independent Advisor
    2026-02-19T07:12:08.13+00:00

    Found the problem. You aren't writing the entire command; the defaults write is missing. Simply copy and paste each line from the reply I gave. Here is an example from Windows.

    User's image


  3. Sumit D - IA 160K Reputation points Independent Advisor
    2026-02-19T02:52:35.32+00:00

    Thanks, Jessica. Can I see a screenshot of the commands you are entering?


  4. Sumit D - IA 160K Reputation points Independent Advisor
    2026-02-18T02:51:07.7833333+00:00

    Hi Jessica,

    Please open the Elevated Terminal/Terminal first.

    Use these commands to disable Connected expriences for Office apps and you should see the memory usage going down immidiately afterwards.

    defaults write com.microsoft.office DiagnosticDataTypePreference ZeroDiagnosticData 
    defaults write com.microsoft.office ConnectedOfficeExperiencesPreference -boolean false 
    defaults write com.microsoft.office OfficeExperiencesAnalyzingContentPreference -boolean false
    defaults write com.microsoft.office OfficeExperiencesDownloadingContentPreference -boolean false
    defaults write com.microsoft.office SendAllTelemetryEnabled -boolean false
    
    
    

    Answer courtesy https://forums.macrumors.com/threads/microsoft-word-web-content-high-cpu-usage.2477641/

    I hope this information helps. If you have any more questions, don't hesitate to reach out.

    Otherwise, please take a moment to rate the answer. Wishing you good luck!

    Standard 3rd party link disclaimer:

    There may be links to non-Microsoft websites that provide accurate and safe information. Watch out for ads on websites frequently classified as PUP (Potentially Unwanted Products). There is no need to buy paid products to fix your computers, as they sometimes do more harm than good.


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