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Windows 7: PDF files getting locked while being in Windows Preview Pane

17 Sep 2015   #1

Windows 7 Enterprise x64
PDF files getting locked while being in Windows Preview Pane

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,

My System SpecsSystem Spec
17 Sep 2015   #2

Windows 7 Ultimate x64 SP1

Perhaps a running app or a context menu entry is locking the file:
- 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
My System SpecsSystem Spec

 PDF files getting locked while being in Windows Preview Pane

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