What is the step in troubleshooting a newly installed device that the PC fails to recognize?

When troubleshooting a newly installed device that the PC fails to recognize, first check the physical connections to ensure the device is securely plugged in. Next, verify that the device is compatible with your operating system and check for any required drivers. If necessary, update the drivers through the device manager or the manufacturer's website. Finally, restart the computer to see if the device is recognized upon reboot.