Final answer:
To check if a network card is functioning properly, use the Device Manager in Windows. It allows you to view the status of the hardware and troubleshoot any issues directly.
Step-by-step explanation:
To verify if a network card is working properly in a Windows operating system, you would use the Device Manager. This tool lists all the hardware components installed on a system and allows administrators to perform actions such as updating drivers, disabling/enabling devices, and checking the device status for issues.
You can access the Device Manager by right-clicking on the 'Start' button and selecting it from the context menu, or by typing 'Device Manager' into the search bar. Once opened, you can find network adapters listed under the appropriate category. A working network card should not have any warning symbols, and by double-clicking on the device, you can view its status. If there is an issue, it will be indicated here, and you may have options to troubleshoot or update the device.