How to View PDF Thumbnails in Windows 7 32-bit Systems?

Discussion in 'Windows 7 Help and Support' started by Question Mark, May 15, 2011.

  1. Saltgrass

    Saltgrass Excellent Member
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    I will mention this in case if might have any relevance. Using Elmer's suggestion, my PDF files were showing with thumbnails---until today!!!

    I did three things and I do not believe the first two would be related since your problem started before the updates were issued.

    Two Updates were installed, .net 3.5 for SP1 and C++ for SP1(SP1 was installed yesterday). I have looked at uninstalling them, but it does not seem possible.

    Also I changed this RAID setup from Basic Drives to Dynamic Drives. Why Dynamic Drives might be involved, I do not know, but whatever caused it, I can no longer get the PDF to show thumbnails on this x64 version.

    There is a chance SP1 is involved since I do not remember if I refreshed the Desktop after that install.

    My 32 bit version continues to work normally, but it does not use Dynamic Drives, so maybe that rules out SP1.

    If there is anything you want me to try, I do have a 32 bit system I can mess with.

    Edit: Looks like the possibility has not panned out. I am now able to change the Thumbnails even with the Dynamic Drives. I am working on one other thing, but it is also not showing consistency.
     
    #21 Saltgrass, May 22, 2011
    Last edited: May 22, 2011
    1 person likes this.
  2. Saltgrass

    Saltgrass Excellent Member
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    I have been on my 32 bit Windows 7 install, which shows thumbnails fine, to see if I could find anything. The .pdf I have been watching are on my Desktop, so another location might use a different cache file.

    It seems from testing that the thumbnails are kept in a thumbcache_idx.db file. It resides in the following folder:

    C:\Users\You\AppData\Local\Microsoft\Windows\Explorer\

    I believe you indicated you have already deleted such a folder, but if not, you might try renaming it. Put a different extension on it and it will be recreated while you watch. Then refresh the Desktop to see if anything happens. I have not tried renaming the other cache data base files.

    It also appears a utility called AcroRd32Info.exe is responsible in some way for replacing the thumbnails. It is in the Adobe Reader folders here:

    C:\Program Files\Adobe\Reader 9.0\Reader\ and in my case is 16K dated 6/19/2010. This, of course, will probably be different for you.

    If your thumbnails have not come back, you might try right clicking the utility and selecting "Run as Admin". If it doesn't replace the thumbnails, maybe it will generate an error message that might give you a clue.

    Your Thumbcache_idx.db file should be about 4K if it is just about empty. If it is larger, then it probably has something in it.

    The only other thing I could think of is related to permissions for the cache files and the Reader Utilities. But if you repaired the install, they should be OK.
     
    #22 Saltgrass, May 22, 2011
    Last edited: May 23, 2011
  3. meger

    meger New Member

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    i had the same problem and using ashampoo uninstaller i removed all adobe files twice and still no thumbnails
    till i removed the extension (with that uninstaller, but any one would do) .pdf then the program noted that
    there is a auto pdf file extension, which when removed caused all the pdf files to change to a blank icon (different
    from previouslly). and on the safe side i removed all adobe folders and files from all users and the thumbnails returned.
     
  4. hbaber

    hbaber New Member

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    Hi ,
    open PDF > Go to Edit > click Preferences > General > basic Tools > Click Enable Thumbnail previews in windows explorer ! Thats it it will install a small addon itself and way go .....

    hbaber
     
  5. Neemobeer

    Neemobeer Windows Forum Team
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    This post is 5 years old...
     

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