How to Remove a Category from WordPress Permalinks

1. Click to expand the 'Settings' heading on the WordPress dashboard. Click the 'Permalinks' link on the expanded menu below.
2. Click one of the radio buttons under 'Common Settings' to use one of the default Permalink structures included with WordPress. These include the month and post title; or month, day, and post title. To configure a custom permalink, skip this step.

3. Click the 'Custom Structure' radio button to define a custom permalink structure for your website. The tags that you can use for the permalink structure include '%postname%' for the post title, 'tegory%' for the category and '%author%' for the author's name. Put a forward slash between each item. For example, to use the author and post title to create a permalink for a post, enter '/%author%/%postname%/' in the 'Custom Structure' field.
4. Click 'Save Changes.'