How do you clear a program 'open with' in Windows XP?

I got a file with a uknown origin program to open it.  I selected a program from the list of options to open it with my computer and discovered that it was evil and that I would have kept the original status of 'unknown '.  How to restore the program return to be a program of unknown file?

File associations generally associate the file extension with a program (the part of a filename after the last period).  To remove an association:

  • Double-click any file to open an Explorer window
  • Select Tools-> Folder Options
  • Click on the tab "File Types".
  • Find the extension in the list window that corresponds to the extension of your file.
  • Click to select
  • Click on the button 'delete '.
  • "OK" your way out

HTH,
JW

Tags: Windows

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