Click-to-Run High CPU Usage

Anonymous
2020-06-09T15:24:20+00:00

Recently I noticed that there was a background application constantly running on my PC called 'click-to-run'. It runs from the moment I switch on the PC and it never stops and even if I stop the task, it will simply start again. It uses around 25% CPU load and when opening an Office app, like Word, that app uses another 25%. I am using Office 365 which I downloaded through the Education bundle which they offer. Is there a fix for this high CPU load please?

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Anonymous
2020-06-15T14:17:34+00:00

Hi All,

Thanks for the detailed information provided. We would like to make a short summary on this issue to help the other users who might have same/similar issues in this community to quickly identify the issue.

Issue Symptom:

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When using the Office applications, they will use a lot of the CPU resources.

In the task manager, the Microsoft Office Click-to-Run(SxS) will consume 25%-50% of the CPU usage.

 

Issue Environment:

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Microsoft 365 Apps with Current & Current(Preview) update Channel

Version 2005 (12827.20328)

Version 2005 (12827.20336)

Version 2005 (12827.20268)

Windows 10

Solution:

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We are trying to escalate this issue to the related resources for further investigation.

Here are some of the methods provided by the users in this community:

1.Using Online Repair to repair your Office suite.

Repair an Office application

2.Some of the users reported this issue is only occurring when you are using a wireless connected to a limited network environment like 4G hot spot. Please use a WLAN connection or a LAN connection, see if it helps on this issue.

3.Install the available Windows OS updates.

Meanwhile, please kindly submit a feedback in the Office client:

How do I give feedback on Microsoft Office?

This will help us speed up the escalation process. Much appreciate for your effort and understanding.

Regards,

Alex Chen

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  1. Anonymous
    2020-06-24T16:41:47+00:00

    I have found you can use Windows firewall to block Word/Excel from Internet. But there still remains that Click-to-Run service taking whole CPU.

    That service can be manually stopped, but who wants to do this procedure each time? Such software is expensive even for free.

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  2. Anonymous
    2020-06-24T15:19:16+00:00

    Further experiments show that disabling internet connection (i disconnected from wifi) when starting office apps has same effect as having metered off during startup of each app. 

    Hope this points Microsoft engineers to the root cause of these issues and we get a proper fix pdq.

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  3. Anonymous
    2020-06-24T14:57:35+00:00

    I have continued experimenting.currently if i start word or excel with metered off and wait for initial burst of cpu activity to finish, i can turn on metered and so far have no increase in cpu activity. 

    Conversely, if i start word or excel with metered on, then i get a high cpu load which does not reduce even if i switch metered off.

    This suggests that office apps need some unrestricted access to internet on each and every  startup, then are happy to work as expected. However, if they do not get this access on startup, they remain in this high cpu loading condition.

    Would be nice to know if others can check this out.

    Office version 2005 (Build 12827.20336) and win10 version 1909 (Build 18363.900) which i think are current latest versions.

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  4. Anonymous
    2020-06-24T12:11:28+00:00

    What kind of support this is? "Let you download another GBs of updates, because it perhaps somehow helped to some users." This is so extremely unhelpful. Give us a reference to hotfix we need to get & install to fix it.

    It is much easier to reinstall Windows and migrate to Google Docs.

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