WordPress.org

Method 1.

1. Download the "NV Slider" plug-in for your WordPress version.
2. Unzip the downloaded file and extract the code to to your /wp-content/plugins/ folder OR simply choose upload in the upper left corder and in the upload box select the nv-slider.zip file you downloaded.
3. To complete installation you should activate the plugin in the plugins section of your administration panel.

Method 2.

1. Go to your WordPress admin account.
2. Open Plugins in the left-side bar menu, choose Add New, and search for NV Slider plugin. Choose the available "NV Slider".
3. Install the plug-in and activate it in your account.