Disable a default theme I want to disable the default theme in my Drupal 7.5 system installation instance. How can I do this? I can't find a Disable link using the Creative Responsive theme version 7.x-1.1.
Drupal requires that one theme must always be set as default. Further, you cannot disable a theme that is currently set as default. 

Best bet would be for you to enable another theme, set it as default, then disable the one you don't want.