This plugin lets you change user’s login username. It changes user_nicename as well so that your author link will correspond to your new username.
- Erik Billerby: Swedish
- Igor Oliveira Ferreira: Brazillian Portuguese
- Search in Plugin Installer for WPVN or USERNAME or you download this plugin here and upload to the plugin directory
- Then activate the plugin through the ‘Plugins’ menu in WordPress
- Go to ‘Users->Change Username’ to change your username.