1. Login to your WordPress admin dashboard.
2. Under the dashboard menu, hover your mouse over "Plugins" and then click on "Installed Plugins".
3. If you want to deactivate the €œHello Dolly€ plugin, for example, click on €œDeactivate€, which appears at bottom of the €œHello Dolly€ text.
How to Delete a Plugin in WordPress?
Once a plugin is deactivated, the delete option will appear.
Go to the €œInstalled Plugins€ list and click on the €œDelete€ link which shows at the bottom of the deactivated plugin€™s name. It will display a confirmation. Press €œOK€ and the plugin will be removed.