question

JennyFeng-MSFT avatar image
0 Votes"
JennyFeng-MSFT asked saldana-msft edited

COM Surrogate & Windows Explorer high CPU and memory usage

Hi all,

In the past few months I have been experiencing a performance issue. Every now and then when I open a windows explorer window, it takes a few minutes while the "address" bar seems to be loading until the contents and the icons in the left pane appear. While it's loading, Windows Explorer takes a crazy amount of memory (up to around 10GB) and very high CPU usage.

Also, every time I right-click a folder and select Properties, it takes forever before the window appears. In this scenario, I've seen COM Surrogate take about 10GB of RAM and very high CPU usage.

I created a log with Windows Performance Recorder that recorded me right-clicking a folder and experiencing this issue and put it here: https://www.dropbox.com/s/qcagf3m84io7zqd/ORIGIN.08-29-2017.22-54-31.7z?dl=0

Thanks for any help anyone can give me :)

Source link: https://social.technet.microsoft.com/Forums/windowsserver/en-US/461cec4c-6cef-4b58-b265-d0c7a43f4e48/com-surrogate-amp-windows-explorer-high-cpu-and-memory-usage?forum=win10itprohardware

windows-10-hardware-performance
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1 Answer

TeemoTang-MSFT avatar image
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TeemoTang-MSFT answered

Firstly, clean boot system to exclude the influence of third-party software.

Next, run sfc /scannow to repair broken system files.

Check your disk state by some disk testing tool such as HD tune, loading issue might be related to disk.

Then, download the software "Process Monitor": https://docs.microsoft.com/en-us/sysinternals/downloads/procmon

Start "Process Monitor": There you will find the file on which dllhost.exe attempts to get access over and over again.

When you have found your file, remove the file from your computer.

There is a video tell you how to operate.

How to fix COM Surrogate high CPU usage in Windows 10

https://www.youtube.com/watch?v=pIy7BMiEi5M

Please Note: Since the website is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.

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