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
    2020-06-24T19:07:22+00:00

    Hi Alex,

    Perhaps you can confirm my supposition. C2R.exe is the software that downloads office updates, hence after i allowed it to complete its work i am no longer seeing issues with this item, probably not until a new update becomes available?

    However we still have the issue starting any office app with metered connection on causes high cpu useage.

    Regards Ken

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  2. Anonymous
    2020-06-25T05:32:42+00:00

    Hi Ken,

    The Click to Run.exe is used to check the available updates and download/install the update package to your Office application.

    I think your idea is correct, since you have already updated to the latest version under current channel. I agree this issue is most likely related to C2R checking updates under a metered network connection.

    Regards,

    Alex Chen

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  3. Anonymous
    2020-06-25T05:37:42+00:00

    Same issue :

    1. Repair : no effect
    2. 4G (no LAN available #covid-19
    3. Click-to-run launch at start-up "forever" without any office app with 25% of the CPU
    4. each Office app launched also uses 25% of CPU even idle
    5. I stop "click-to-run in services.msc and change it from automatic to manual start but, still, it restarts when any office app is launched

    Help !

    Christian

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  4. Anonymous
    2020-06-25T12:35:15+00:00

    Hi Christian,

    May I suggest that you try the following, it works on my system.

    1 Stop 'click-to-run' in services.msc and set it to disabled.

    2 Block 'Microsoft Click to Run Virtualization Optimization' from connecting to the internet (I use Zone Alarm Firewall for this, there is a free version available, the same may be possible in Windows Firewall but I have never used it)

    3 Reset click-to-run to Automatic

    4 Whenever you need to open a new instance of any office app, ensure that you disconnect from the internet first. Once the instance is up and running you can reconnect to the internet.

    5 If you forget to disconnect first, close that instance, disconnect, then reopen it.

    Hope this helps.

    Regards Ken

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