How to remove File Type associations in Windows 10/8/7

Windows 10/8/7/Vista do not provide a GUI to unassociate or dissociate file type extensions. But if you need to remove file associations, you can do so using this portable utility called Unassociate File Types.

delete file type

Remove File Type associations

Download unassoc.zip from the link mentioned below, and save to Desktop.

Next, extract the contents to a folder and run the file unassoc.exe

Now 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.

The Remove file association (User) button 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.

The Delete file type button Deletes the file type completely from the registry. Both the user-specific and global associations for the chosen file type is removed.

And the Refresh list button, Refreshes the list box contents.

This utility requires administrative privileges to work correctly.

So if you need to remove file associations you can download the free tool here and use it.

PS: If you find that you cannot open a particular file type, then our File Association Fixer will be able to easily help you fix, repair and restore the broken file associations. Incidentally,  you may also want to read about how one can set or change file type associations using the Control Panel in Windows or about the Default Programs Editor for Windows.

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Anand Khanse is the Admin of TheWindowsClub.com, a 10-year Microsoft MVP Awardee in Windows (2006-16) & a Windows Insider MVP. Please read the entire post & the comments first, create a System Restore Point before making any changes to your system & be careful about any 3rd-party offers while installing freeware.