Windows 10: Weird behavior/ sluggish after handling large files

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  1. f14tomcat's Avatar
    Posts : 37,021
    Triple boot - Win 10 Pro, Win 10 Pro Insider (2) - (and a sprinkling of VMs)
       10 Aug 2018 #11


    What you're describing sounds symptomatic of the Explorer Working Set memory size growing and growing. You have 16GB of memory, so that shouldn't be an issue. But if the Paging File is too small, or for some strange reason missing (a no-no), or configured incorrectly, Explorer and Windows will have no way of managing that working set size. That could explain why a re-boot takes away the sluggishness, and it slowly creeps back when feeding Explorer large chunks of data.

    Possibly restarting Explorer alone may produce the same temp cure. Try that to see.

    Check your settings for Paging to see if something doesn't look right. These are shots from mine. I let the system manage the Pagfile.sys size.

    Click image for larger version. 

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      My ComputersSystem Spec

  2.    10 Aug 2018 #12

    Try to use these utilities to disable suspect 3rd party Explorer extensions & context menus:
    ShellExView - Shell Extension Manager For Windows
    ShellMenuView - Disable/enable context menu items of Explorer
      My ComputerSystem Spec

  3.    10 Aug 2018 #13

    How much free space do you have on C: when your PC is working normally?
    And how much after you've rar'd a large file?

    I'm just thinking that winrar, for example, creates a large temporary file. If C: filled so you then had little working space left, your PC would slow. (Hence my interest in resource monitor and task manager screenshots).

    That would somewhat align with part of @tomcat's thinking.

    Then perhaps the temporary file is deleted on restart.
      My ComputerSystem Spec

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