Protecting Your Customisations
If you have customised the WordPress default theme, all of your changes will be over-written the next time you upgrade WordPress. So you need to protect them now by creating your own custom theme.
- Using FTP (or whatever file management tool you have available), download the
wp-content/themes/default
folder to your machine. - Rename the downloaded folder “mytheme”.
- Using a plain text editor, open style.css in this new folder and, at the very top of the file change:
Theme Name: WordPress Default Theme URI: http://wordpress.org/
to
Theme Name: My Theme
- Upload the mytheme folder to wp-content/themes on your server.
- In WordPress, navigate to Appearance / Themes and you should see that the My Theme is now available as a separate theme. Activate it.
Your customisations are now protected against over-writing during an automatic upgrade.