Can I delete unused and inactive WordPress themes?

There is an item called Site Health Status in the WordPress dashboard. It is a default function added in WordPress 5.2 that diagnoses the health status of your WordPress site.

Go to the dashboard and click on "Dashboard" on the left sidebar.

There is a link in this item, so click on [Site Health Screen].
So, I had been wondering about this for a while.

Can I delete unused WordPress themes?

The answer became clear.The answer is [delete]is.

If you receive a message from WordPress saying "Please delete inactive and unused themes," then deleting them is the right thing to do.

Until now, I thought it would be fine to leave it there since I hadn't been using it, but I decided to take this opportunity to delete it.

It seems they are pushing for the deletion for security reasons.

If you want to know more about WordPress security, come visit us!

I thought about security measures for WordPress

Strengthening your site's security = improving your SEO!

Delete unused and inactive themes in WordPress

Now, let’s delete the theme.

Click on Appearance > Themes.

Delete unused and inactive WordPress themes

Click on the theme you want to delete

Click Delete on the bottom right

Do not delete the default theme twenty twenty

I wish they had written that at the beginning. The default theme twenty twenty that is applied when you install wordpress is used when there is a problem with the site, so it seems that it should not be deleted. So I installed the free wordpress theme twenty twenty.

[Appearance] > [Theme]

New additions

At the very front was twenty twenty!

Click [Install] and you're done.

This video provides detailed instructions on how to install the Worpdress theme.

[Video explanation] How to install a free WordPress theme

summary

I've seen and heard a lot of information that says it's a good idea to delete unused WordPress plugins, but is it also a good idea to delete unused themes? I was really wondering.

I was also glad to notice that a new feature called Site Health Status had been added!