How to change Pages and Posts URLs in WordPress

1. From your WordPress dashboard, go to the Edit screen of the page or post you wish to edit.
2. Click on the “Edit” button next to permalink. You might see “Change Permalinks” button instead of “Edit” button. Click this button and then click on “Post name” radio button from the “Permalink Settings” page. Now click the “Save Changes” button.
3. Go back to the page or post you want to edit and you should now see the “Edit” button.
3. Click on "Edit” and the URL will change to a text box, so you can alter it. Make your changes, and remove any special.
4. Click the “OK” button.
5. Click the “Publish” or “Update” button.