Windows 10: Windows explorer: Thumbnails take a long time to generate

Discus and support Windows explorer: Thumbnails take a long time to generate in Windows 10 Support to solve the problem; Hello everyone. I recently noticed that it would take Windows a long time to generate the thumbnails in Windows Explorer when there are sub-folders a... Discussion in 'Windows 10 Support' started by Gnimble, Jul 21, 2020.

  1. Gnimble Win User

    Windows explorer: Thumbnails take a long time to generate


    Hello everyone.

    I recently noticed that it would take Windows a long time to generate the thumbnails in Windows Explorer when there are sub-folders a couple of levels deep. If there are no sub-folders or sub-folders just one level deep, then the thumbnails would instantly load.

    I can click on a folder and then wait for the green bar to slowly go across the screen, often time, it would take minutes. All thumbnails would eventually be shown, but that is an awfully long time. If I scroll down, the next set of thumbnails would then take a long time to load. If I scroll back up, it would take a long time to reload those thumbnails again. During the time of the loading, the CPU fan would rev to max and is very loud.

    I've combed the web and this forum for answers. I've deleted the thumbnail cache. Another thread said to disable the Windows search service, but I use that a lot to locate files and pictures on my PC.

    At first, I thought it was my new SSD failing already, because that usually happens when one of my hard drive fails. I get the same results copying the files and directory structures to a RAM drive. On folders with multiple directories deep, it would take a long time to load the thumbnails there too.

    There was an update that requires a reboot two days ago and I believe it is what caused the issue. According to Windows, it is the latest update pending the feature update one.

    Windows version 1909
    OS Build: 18363.959
    CPU: Zeon E3-1505 v5
    Ram: 64GB

    Any recommendations would be greatly appreciated. I work with images and documents so rely on Windows Explorer. Until now, I did not have this issue.

    Thank you.
    -

    :)
     
    Gnimble, Jul 21, 2020
    #1
  2. jsmin Win User

    Windows Explorer crashes and thumbnails problem

    Hi, I hope you can help me.
    Windows Explorer is no longer showing thumbnails on files played by Windows Media Player. I've run cmd and regsvr32 shmedia.dll and regsvr32 shimgvw.dll. That seemed to solve the problem...but it created a different one. Now when I try to open a folder on an external hard drive it crashes. I read in an old 2008 post it was an avi file causing the problem and suggested the run cmd regsvr32 /u shmedia.dll. That solved the opening problem but recreated the thumbnail problem. Any help to achieve both functions would be greatly appreciated. Thank you.
     
    jsmin, Jul 21, 2020
    #2
  3. windows explorer take long time to load

    windows explorer take long time to load
     
    PRATIK MARCHANDE, Jul 21, 2020
    #3
  4. banditrvp Win User

    Windows explorer: Thumbnails take a long time to generate

    File Explorer - Some PDF's show thumbnail image, some don’t

    In Windows 10 File Explorer, I see thumbnails for a few of my pdf files but still see the generic Adobe pdf icon for most of them.

    • In Windows 10 folder options, the checkbox for “Always show icons, never thumbnails” is unchecked.
    • On the Adobe Reader preferences general tab, “Enable PDF thumbnails previews in Windows Explorer” is checked.
    • Adobe Acrobat is set as my default PDF viewer.
    • I have used Disk Cleanup to delete all my thumbnails to clear and rebuild the cache, yet the problem persists.
    Any suggestions on how I can see all the pdf icons as thumbnails?
    Windows 10 Pro, Version 1903, Build 18362.657
    Adobe Acrobat Reader DC (20.006.20034)

    I asked over in the Adobe Acrobat Reader forum a few days ago but have received no replies.


    Windows explorer: Thumbnails take a long time to generate [​IMG]


    Ron
     
    banditrvp, Jul 21, 2020
    #4
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Windows explorer: Thumbnails take a long time to generate

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