Windows 7 - File Extension Type - Unassociate

   Information

This tutorial will show you how to unassociate a file extension to not have a default program to open it with afterwards.

   Note

This is a standalone EXE program that can be ran without installing on your computer. You must be logged in as an administrator to be able to use this program.

CREDIT TO: Ramesh Srinivasan

1. Download the ZIP file for the free Unassociate File Types program under Attachements towards the bottom of the site at the link, and save it to your desktop.

2. Open the downloaded unassoc.zip, and extract (drag and drop) all files to the desktop. (see screenshot below)

3. Run the Unassoc.exe file.

4. If prompted by UAC, then click on Yes.

5. To Unassociate a File Extension Type

A) Click on a file extension type from the list in the left pane to select it. (see screenshot below step 7)

B) Click on Remove file association (User). (see screenshot below step 7)

6. To Delete a File Extension Type

A) Click on a file extension type from the list in the left pane to select it. (see screenshot below step 7)

B) Click on Delete file type. (see screenshot below step 7)

7. When finished, close the program.