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File Names With ._ On The Beginning Of It?

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When I place a pdf file on to Windows 7 from a Mac (OSX 10.5.8) it appears fine on other XP Professional Machines.. but on a newer Windows 7 Machine just installed when looking from that machine over to the usual Windows 7 Machine, the file has a “._” at the beginning of the file names. Also the File will not open, it says it is unrecognized, but when you go to the properties of that file, it says that it is a Acrobat or (PDF) Files so what gives? I know this is some setting on the new Windows 7 Machine that is causing it, but what is it?

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5 Answers

  1. You either do not have a pdf reader installed on Windows 7 or your file association for .pdf types is not pointing to your pdf reader application.

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  2. I will check the file associations, but it would seem if this was not correct, why when I select on the properties of the file is it showing that this is an Acrobat Reader 9.x file?

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  3. You have a point!
    Have you tried renaming the file to get rid of the “._” so that the file is filename.pdf and then tried opening it?

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  4. Can you open other pdf files that are on your machine?
    Give the full file name (including extension) of one of these files.

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  5. ._ files are created automatically by Mac OS X and contain metadata related to the accompanying file that was placed there by programs in the Mac.

    Files starting with periods in Mac and Linux are made hidden automatically, but Windows doesn’t handle period-prefixed files this way. So our recommendation (rather than deleting these files) would be to make them hidden in Windows as well.

    There are a few ways to do this, but first make sure you have Folder Options set to “Don’t show Hidden Files, Folders, or Drives”.

    Open Start
    Type in “Folder Options” and run this program
    Go to the View tab
    Set the radio button to “Don’t show Hidden Files, Folders, or Drives”
    Click OK

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