You should remove unused themes. It is considered good practice to protect your WordPress website from vulnerabilities by not keeping old, unused themes.

**1.** Log in to the WordPress dashboard.

**2. **From the Dashboard menu, go to **Appearance** and click on **Themes**.

**3.** Hover your mouse on a theme you want to remove. Click on **Theme Details**.

**4. **Click on **Delete** and Confirm with **OK**. You can find the Delete option at the bottom right area of the window.

You have successfully removed the theme.