Using comforto.zip found in ZIP file you downloaded from ThemeForest.net you should perform the following steps:
- Login to WP admin.
- Go to WP Dashboard → Appearance → Themes option and click on it to load new page.
- Select Install Theme tab at the top of the panel to load new page.
- Click on Upload Theme button at the top of the panel to load new page.
- Click on Browse button and locate comforto.zip on your file system.
- Click on Activate button.
- Once installation is complete before need enter Your Purchase Code and click the button Continue to install and activate required theme plugins.
- On the next step you will see theme’s splash screen with 5 buttons.
- If you need additional plugins to extend the functionality of the theme, click the Continue button.
- If you don’t need additional plugins, click on the Import demo button to import demo data your website.
- After Importing Demo data you can customize theme, clicking on Customize button or go to WP Dashboard → Appearance → Customize