Microsoft Office Click-to-Run (SxS) High CPU

Anonymous
2020-06-08T19:16:00+00:00

I am using Office Home & Student 2019 with Windows 10 Home. The June update was recently completed to Version 2005 Build 12827.20268.

After installing this update I noticed that Microsoft Office Click-to-Run (SxS) showed continuous 24% CPU utilization in the Task Manager. Power usage was shown as very high. This did not occur prior to the update. I have metered connection set in the network settings and discovered that the problem goes away if I turn off metered connection and restart the computer.

Does this sound like a bug in the latest update? I have Office 2013 on another computer and there is no problem on that system with metered connection set. I'd be interested if others have seen this problem or have any suggestions.

Microsoft 365 and Office | Excel | For home | Windows

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Anonymous
2020-06-25T00:39:40+00:00

Hi KenBell6 & Everybody else,

Just got latest update for my version of Office (Office 2016 ProPlus Retail - 32bit).  Found it on Current Preview Channel.  Downloaded it and rebooted my PC and CPU Usage is back to what it used to be.

Don't know if it's a permanent fix, hope it is, but it seems to be working fine so far, after 3 reboots (just to play it safe).  I have several Office apps open, and as you can see above it looks pretty good.  Good luck everyone, let me know if it worked for you.

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  1. Anonymous
    2020-06-23T18:25:55+00:00

    Office 2013 Version 15.0.5241.1000 is fine here with metered connection. The latest update came out one day after my initial post so I don't know if that revision would have the same problem. Office updates in this system are not installed automatically.

    The problems with Click-to-Run are not new. See this thread from early 2015 where users were seeing 20% CPU utilization. There were also high CPU problems with OneNote.

    https://answers.microsoft.com/en-us/office/forum/office_2013_release-other_msftoffice_apps/microsoft-office-click-to-run-process-running-with/c88b90d6-0805-408d-a7bd-47ef8cf31f24?auth=1&page=1

    The Microsoft Agent in the primary thread that I referenced two days ago is now recommending that users install an earlier version of Office until the problem is resolved.

    https://answers.microsoft.com/en-us/msoffice/forum/all/click-to-run-high-cpu-usage/1b8d4ecf-fb0f-493a-b8bb-619a9d34150e?page=4&tm=1592692436182

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  2. Anonymous
    2020-06-23T15:31:45+00:00

    How can be this a permanent solution?

    Yeah, that made me smile too.

    On the other hand, this is Microsoft we are talking about. Words like "fixed ASAP" and "not acceptable" do not apply. /s

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  3. Anonymous
    2020-06-23T03:16:19+00:00

    my excel is not opeing i need to setup

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  4. Anonymous
    2020-06-23T02:16:44+00:00

    The most consistent answer that seems to work is turning off your Metered connection. You can run MS Support Assistant and uninstall Micrsoft 365 and then re-install, this only works for a few days I have found.

    I try to stay on a Metered connection, so when I reboot, if C2Run starts going CPU loop bound, I turn off Metered connection, kill C2Run and when I restart WORD/EXCEL C2Run is OK but both WORD/EXCEL (probably all Microsoft 365 Apps) run at 25% of CPU even idle. If I turn off Metered connection and restart both Apps they behave normal in idle state, low CPU.

    What a mess, obviously a MS bug.

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