We always recommend uninstalling WordPress themes that you aren't using. Themes can have security holes, and your site will be safer with fewer installed themes.
However, uninstalling a theme in WordPress should be simple, but it's harder than you might think. The setting to delete a theme is well hidden.
This tutorial will show you how to uninstall a WordPress theme.
1) Make sure the theme is not active
If the theme that you'd like to uninstall is the active theme, first activate another theme. Go to:
- Appearance -> Themes
- Activate the theme you'd like to use
- Hover your mouse over the theme you'd like to uninstall
- Click on "Theme Details"
- At the bottom right, click on "Delete".
And that's it. You're done.