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. ji
    said this on Friday, October 2nd 2015 5:31 pm

    solves my .lnk problem. this is a great tool. thanks to the author.

  2. said this on Friday, October 2nd 2015 3:47 am

    Just downloaded unassoc.zip for Windows 7. The file is open that shows the non highlighted buttom “Remove file association (User)” Cannot get this button to work to remove file associatio.

    Thank you


Leave a Reply