Windows 8 and 8.1 Forums


W8 keeps deleting thumbnail cache (changed folder permission)

  1. #81


    Posts : 32
    Arch x64 / Windows 8.1 Pro x64


    Well that sucks.

    Thanks for reporting.

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  2. #82


    Yeah man how did MS f*cked so bad from windows 7?
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  3. #83


    Posts : 32
    Arch x64 / Windows 8.1 Pro x64


    Gonna try the Windows 10 Techinal Preview soon. Maybe it's improved, though I still won't be able to reach 600MB .
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  4. #84


    I cleared out my cache and played around with my 20,000 pictures folder. It seems at certain point Windows just stops adding thumbnails, (number of thumbnails wise, not size wise). I got to about 420MB before it stops making thumbnails for my 20,000 pictures folder. Also, the way it clears that folder it seems that I'm left with way fewer thumbnails than what a 420MB cache would suggest. Finally, I have another folder of video files, and Windows never removed those thumbnails to make way for the new thumbnails. This is some really strange behavior that Windows 8 is operating on. I really hope Windows 10 reverts back to Windows 7. Is MS even aware of the thumbnail problem? This is 2014!
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  5. #85


    Posts : 32
    Arch x64 / Windows 8.1 Pro x64


    I think they are, but the "solution" has virtually never been helpful.

    They keep pointing fingers at Disk Cleanup (Automatic maintenance) and 3rd party apps or corrupt user profiles.

    The single-folder issue might be due to concerns for RAM usage for explorer.exe (e.g. malware protection). Have you checked how much memory it consumes, or whether you would get the thumbnails by moving them to a different location?
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  6. #86


    I haven't checked, but my other picture folders also got their thumbnails reset, so I don't think it's a folder getting too big issue. It's like all the folders share the same pool of say 5000 available thumbnail spots.
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  7. #87


    Posts : 32
    Arch x64 / Windows 8.1 Pro x64


    At least for the specific image size, taken what you said earlier:
    Quote Originally Posted by windows8thumba View Post
    [...] I have another folder of video files, and Windows never removed those thumbnails to make way for the new thumbnails. [...]
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  8. #88


    I think video files have a different pool of thumbnails. Even when I'm stuck at 420MB with the picture thumbnails, the cache increases as soon as I make thumbnails out of videos.
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  9. #89


    Posts : 32
    Arch x64 / Windows 8.1 Pro x64


    But they're not of different size?
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  10. #90


    What I mean is that when Windows erases earlier thumbnails to make way for newer thumbnails, it doesn't seem to touch video thumbnails, only picture thumbnails. Newer picture thumbnails only replaces older picture thumbnails, so cache size is not increased. New video thumbnails increases cache size because it's added to the cache, not merely replacing something else.
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W8 keeps deleting thumbnail cache (changed folder permission)
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