Windows 10: Change Taskbar Thumbnail Threshold to Show List in Windows 10  

    Change Taskbar Thumbnail Threshold to Show List in Windows 10

    Change Taskbar Thumbnail Threshold to Show List in Windows 10

    How to Change Threshold of Taskbar Thumbnails to Show List in Windows 10
    Published by Category: Customization
    01 Apr 2017
    Designer Media Ltd

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    Posts: 20,708

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    How to Change Threshold of Taskbar Thumbnails to Show List in Windows 10

    information   Information
    When you hover over the icon or button on the taskbar of opened items, it will show either thumbnail previews or a list of the opened windows or tabs for that item.

    The taskbar will only show thumbnails of so many opened windows or tabs for an item (ex: Internet Explorer) before the threshold is reached and will then automatically show a list afterwards for that item.

    This tutorial will show you how to change the threshold after which taskbar thumbnails of opened items show as a list instead for your account in Windows 10.

    Note   Note
    The taskbar threshold limit will vary depending on what you have set for your screen resolution and DPI scaling level.

    Here are some default threshold limits based on screen resolution using default DPI:
    • 800x600 = 7 tabs or windows open for threshold
    • 1024x768 = 10 tabs or windows open for threshold
    • 1920x1080 = 16 tabs or windows open for threshold


    EXAMPLE: Taskbar showing thumbnail previews and list
    Click image for larger version. 

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    Name:  Taskbar_list_mode.jpg
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    Here's How:

    1. Press the Win+R keys to open the Run dialog, type regedit, and click/tap on OK to open Registry Editor.

    2. In the left pane of the Registry Editor, browse to the location below. (see screenshot below)

    HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Taskband

    Click image for larger version. 

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    3. Do step 4 (change) or step 5 (default) below for what you would like to do.


     4. To Change Taskbar Thumbnail Threshold

    A) In the right pane of the Taskband key, double click/tap on the NumThumbnails DWORD to modify it. (see screenshot below step 2)
    Note   Note
    If you don't have a NumThumbnails DWORD, then right click or press and hold on an empty area in the right pane of the Taskband key, click/tap on New and DWORD (32-bit) Value, type NumThumbnails, and press Enter.


    B) Select (dot) Decimal, type a number you want for the taskbar thumbnail threshold, click/tap on OK, and go to step 6 below. (see screenshot below)
    Note   Note
    If you type 0 (zero) it will effectively disable taskbar thumbnail previews, and only show in list mode.


    Name:  Taskbar_thumbnail_threshold-2.png
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     5. To Restore Default Taskbar Thumbnail Threshold

    A) In the right pane of the Taskband key, right click or press and hold on the NumThumbnails DWORD, and click/tap on Delete. (see screenshot below step 2)

    B) Click/tap on Yes to confirm, and go to step 6 below. (see screenshot below)

    Name:  Taskbar_thumbnail_threshold-3.png
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    6. Close Registry Editor.

    7. Restart explorer, or sign out and sign in to apply.



    That's it,
    Shawn


  1.    24 Sep 2015 #1

    Well, thumbnails are just fine when it comes to opened applications, but thumbnails that represent opened FOLDERS are major problem. Folder thumbnails all look about the same, and the information I need - the folder path - is less apparent. I would vote for only the list of folder paths to appear for folders.
      My ComputerSystem Spec

  2.    07 Sep 2016 #2

    Thank you! It works before but when I create and log in by a new account. It does not showlist anymore
    Click image for larger version. 

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      My ComputerSystem Spec


  3. Posts : 20,708
    64-bit Windows 10 Pro build 16199
    Thread Starter
       07 Sep 2016 #3

    Hello snminhduc, and welcome to Ten Forums.

    This is not a global setting that is applied to all users. It needs to be set per account.

    Is it not showing for the new account what you meant?
      My ComputersSystem Spec

  4.    07 Sep 2016 #4

    Hello! it's work before for the old account, but when I create a new DWORD for new windows account, it does not work anymore. I have tried restart explorer, even restart my computer
      My ComputerSystem Spec


  5. Posts : 20,708
    64-bit Windows 10 Pro build 16199
    Thread Starter
       07 Sep 2016 #5

    I just tested in build 14915, and it appears that this option may no longer work to change the taskbar thumbnail threshold.

    I'll keep testing and playing to see if I may be able to figure something out.
      My ComputersSystem Spec

  6.    18 Sep 2016 #6

    Brilliant, works for me on a notepad running win 10.
      My ComputerSystem Spec


  7. Posts : 20,708
    64-bit Windows 10 Pro build 16199
    Thread Starter
       18 Sep 2016 #7

      My ComputersSystem Spec


 

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