An administrator installed a new NIC into an existing older server. The NIC is not properly recognized by the OS. Which of the following is MOST likely the problem?

While insufficient power can cause hardware issues, it is less likely to be the primary cause for a device to be 'not properly recognized' compared to a missing driver, especially if the server is otherwise operational.

For an operating system to properly communicate with and utilize a newly installed hardware component like a Network Interface Card (NIC), a specific software component called a device driver is required. Without the correct driver, the OS cannot identify or interact with the NIC, leading to it not being recognized or functioning properly.

A virus could potentially cause system instability, but it is not the most common or direct reason for a *newly installed* hardware component to specifically lack recognition by the OS.

Reinstalling the operating system is a drastic measure and rarely necessary for a new hardware installation; installing the appropriate driver is the standard and more efficient solution.