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Clearing file associations

By strategic
Jul 28, 2011
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  1. Hi there,
    I have a file with a 'prf' extension which has a conflict on my PC.
    The computer thinks it is a MS Outlook file, but it isn't.
    In Windows XP, I was simply able to find the extension under the file type tab in the tools menu, and simple delete the extension.
    How can this same process be performed in Windows 7?
     
  2. dustin_ds3000

    dustin_ds3000 TechSpot Chancellor Posts: 869   +8

    right click the file and click open with, from there you can change the default program that opens when you double click that file type.
     
  3. strategic

    strategic TechSpot Paladin Topic Starter Posts: 1,020

    Thanks Dustin.
    I didn't want to change it, I wanted to delete it altogether.
    After a little research I have since been able to do it though the registry editor.
    Thanks for the help:)
     
  4. uganr

    uganr TS Rookie

    For furture reference, the registry location is:
    Computer\HKEY_CLASSES_ROOT\Applications and find your .exe name

    - For example purposes lets say we use to EXCEL
    Expand EXCEL >> shell >> open >> command

    - In the right hand pane double click the (Default) string and change the path to the location of the actual executable (Microsoft Excel in this case)

    - Click OK and close Registry Editor
     

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