How to Install a WordPress Plugin
Firstly you should go to your WordPress admin area and then click on Plugins > Add New
Search any plugin that you would like to use by typing its name or functionality on the search bar. After that, you will see many plugin in search results. Now you can pick the plugin you were looking for.
For example, we were looking for appointment scheduler. Now we will click the Install Now button and it will be downloaded and installed shortly. However, process isn’t done yet. You will need to activate the plugin in order to use on your website.
You can activate it right after the installation is done or go to Plugins > Installed Plugins and then find the plugin you want to activate and click on the Activate button.
How to Install a Paid Plugin on WordPress
There aren’t paid plugins in WordPress plugins directory, so you will need to use another way to install it when you have a paid plugin.
You need to go to WordPress admin area and then click on Plugins > Add New > Upload Plugin as shown on the screenshot above. Then browse the zip file that you downloaded earlier and select it and then click Install Now. After that, go to Plugins > Installed Plugins and find the plugin you installed and then click on Activate button to activate it.