Installing the HP Envy Pro 4520 printer is simple. First, unbox the printer and remove all packaging materials. Plug it into a power source and turn it on. Install the ink cartridges and load paper into the tray. Next, download the latest drivers from 123.hp.com/setup envy pro 4520 and install them on your computer. Follow the on-screen instructions to connect the printer via USB or Wi-Fi. Once connected, print a test page to ensure proper setup. Your HP Envy Pro 4520 is now ready for use.