This tutorial will show you how to add/remove widgets in the WordPress.
The widgets are controlled through the WordPress admin panel.
Login to the WP admin panel and go to Appearance>Widgets
In the left column you can see all available widgets.
In the right column you can see the available widget areas.
To add new widget drag it from the left column into some widget area in the right column.
To remove the widget locate it in the widget area in the right column and click Delete. Or drag it from the right column to the left.
Feel free to check the detailed video tutorial below:
How to add/remove widgets