PDF files getting locked while being in Windows Preview Pane


  1. Bandusiri
    Posts : 1
    Windows 7 Enterprise x64
       New #1

    PDF files getting locked while being in Windows Preview Pane


    Hi,
    In our application, we read files in binary in order to upload them through HTTP to our server from client machine. When a PDF file being reviewed in Windows (7) Explorer preview pane then our application becomes unable to access the file as the file is locked by Preview pane. Following is the IOException we end up with

    The process cannot access the file <file path + name> because it is being used by another process.

    This situation take places only on PDF files, which, we believe, can be fixed either from Windows or Adobe side.

    Thank You,
    //Bandusiri
    Last edited by Bandusiri; 17 Sep 2015 at 05:22.
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  3. GokAy
    Posts : 5,656
    Windows 7 Ultimate x64 SP1
       New #2

    Perhaps a running app or a context menu entry is locking the file:
    Try:
    - a clean startup - Troubleshoot Application Conflicts by Performing a Clean Startup
    - Get CCleaner - Tools - Startup - Context menu - save to text (or screenshot) to later see what was enabled, then disable all
    - See if LockHunter is a free 64/32 bit tool to delete files blocked by any processes shows anything
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