A Utility to Unassociate File Types in Windows 7 and Vista

Here is a utility that helps you unassociate a file type quickly in your Windows Vista or Windows 7 computer without the need to edit the registry manually. Windows 7 & Vista do not provide a GUI option to unassociate file types, thus the need arises for such a tool below.

Unassociate file types in Windows 7 & Windows Vista

  • Download unassoc.zip and save to Desktop
  • Extract the contents to a folder and run the file unassoc.exe
  • Select the file type from the list
  • Click Remove file association (User)

The user-specific association for the chosen file type is now removed from the registry. The system will now use the global file association settings.

More information

Remove file association (User)Removes the user-specific association (via the Open With dialog) for the chosen file type. Note that this button will remain dimmed if there is no user-specific association for the file type.
Delete file typeDeletes the file type completely from the registry. Both the user-specific and global associations for the chosen file type is removed.
Refresh listRefreshes the list box contents.

Email SubscriptionPrefer an E-mail subscription?

Enter your email address:

Delivered by FeedBurner


  1. Bev E
    said this on Sunday, March 15th 2015 5:17 am

    This solved a problem for me. Thanks very much!

  2. Coldbeer
    said this on Tuesday, March 3rd 2015 10:56 pm

    Thank you!! I had accidentally associated .lnk files with Adobe, what a mess. No shortcuts would open, all shortcuts in the start menu, taskbar, etc, would not work. In addition, I do not have Admin privileges on this PC. BUT, the program still worked, it let me delete the User association. perfect!!

  3. asad
    said this on Saturday, February 28th 2015 10:07 pm

    great solution thanks

  4. K.D.A
    said this on Sunday, February 22nd 2015 2:57 am

    If I had a fraction of the knowledge you have I would be a happy man, have just gone from Windows XP to windows 7 due to end of support, may get a few more years before Microsoft pull the plug on that as well.
    Thanks for a brilliant cure, still not clear in my mind how I got into the problem though.

Leave a Reply