Install a Plugin using WordPress Plugin Search:
To access the admin panel of your site go to yoursite.com/wp-admin and log in with your username and password .
Navigate to plugins -> Add new.
You can see the ‘Search plugin’ box.
Search the name of your desired plugin and you will get a list of plugin suggestions.
Choose your plugin and click on ‘Install now’. After some time that button will change to activate. Click ‘Activate’.
Install a Plugin using the WordPress Admin Plugin Upload:
To access the admin panel of your site go to yoursite.com/wp-admin and log in with your username and password .
Navigate to plugins -> Add new. Click on the ‘Upload Plugin’ button on top of the page.
You can see the plugin upload form . Click on the ‘ Choose File ’ button and Select the zip file which you have downloaded from the plugin provider.
After selecting the file , hit the Install now button.
WordPress will now upload the plugin file from your computer and install it for you. You will see a success message like this after the installation is finished.
Click Activate plugin.
You may now start using the new plugin.