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Thread: Thumbnail window freezes 15 seconds / before loading anything

  1. #1
    IV Newbie
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    Nov 2020
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    IrfanView 4.51
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    64-bit Win 10
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    Default Thumbnail window freezes 15 seconds / before loading anything

    Hi,
    I’m a big fan of Irfanview and using it to organize my images since several years on various computers based on windows. But recently I discovered a problem. I set up a new 12-core AMD Ryzen computer, with m.2 SSD + 32GB RAM and so on, running the latest Windows 10 Pro (version 20H2).
    Opening Irfanview (directly or by double clicking an image) is very fast and without any delay. But when I press T to switch to thumbnail view, the program freezes for 15 seconds and then starts loading the images. (Task manages says the app is not responding during that time)
    This is a very strange behavior, that I have never experienced on any of my weaker intel machines before. It is the same behavior when I directly open thumbnail view. No other software of mine is showing that behavior.

    I tried IrfanView 4.56 and 4.53. (64-bit + 32-bit portable)
    I tried disabling all plugins, windows compatibility mode, disabling defender antivirus, different folders, different hard drives … but all leads to the same behavior.

    I hope you guys have any hints what is causing this. Is there a debug or error log option?

    My system infos:
    Windows 10 Pro (version 20h2) 64-bit

    AMD Ryzen 3900x
    MSI Tomahawk X570 Motherboard
    m.2 SSD Samsung 970 Evo Plus
    Crucial Ballistix 32 GB RAM (3200 Mhz)
    GPU: Asus RTX 2070 Super

    No error message is shown.
    All files or folders cause this problem.

  2. #2
    Moderator Enterprise User Bhikkhu Pesala's Avatar
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    May 2007
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    Default

    I don't have any suggestions to offer. There is a delay of a second or two on my much slower single-core AMD system.

    Specs: AMD A10-6800K, 8 Gb (WinSPRLevel = 5.9) on Win 10 64-bit 2004 build 19041.572
    Last edited by Bhikkhu Pesala; 08.11.2020 at 06:12 PM.

  3. #3
    IV Beginner
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    Default

    My guess is it could be something when loading folders in the tree view. The program is trying to list disk drives and user folders. Maybe it's hanging on something there.
    IrfanView 4.56 64bit, Windows 10 20H2

  4. #4
    IV Newbie
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    IrfanView 4.51
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    After some research, I started IrfanView specifically as Administrator (even though my user account is an Administrator too) and when i do this, it doesn't produce the delay (or freeze). Why is that? Starting that way is quite annoying, because i always get the UAC warning first, and i have to confirm it too. (Changing the security settings isn't the best workaround either)
    Any hints or explanations for this? Thanks a lot.
    Last edited by schrotti; 09.11.2020 at 09:07 AM.

  5. #5
    Moderator Enterprise User Bhikkhu Pesala's Avatar
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    I am also using an Admin account. I think Irfan Skiljan is the one best placed to offer a solution to this. Please send him a bug report and let us know the results. See Help, About IrfanView for his email address.

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