Those are the WordPress Standard Themes. There is a new one every year. A few days ago. Twenty Sixteen was released. You can delete them if you want to.
Remember: if wordpress can’t find you activated theme files, is has a fallback to use one of the standard themes. If you delete all those themes, there ist no fallback anymore.
Moderator
t-p
(@t-p)
@pringle Stik,
In my fresh download of 4.4 I see only 3 default themes, NOT 5 as your post suggests:
Twentyfourteen
Twentyfifteen
Twentysixteen
That’s because a bew WordPress only comes with the 3 latest standard themes.
The new standard themes will be installed as soon as the are published but they never get deinstalled automaticly. You have to do this yourself.
Moderator
t-p
(@t-p)
Despite WordPress 4.4 containing default themes, no themes are installed by WordPress updates, this is intentional. If you were already using WordPress, you’ll need to install any theme from Appearance -> Themes -> Add New in your Dashboard.
Also, you can delete any unused plugins/themes.
