MCSA/MCSE Self-Paced Training Kit (Exam 70-270): Installing ...

6-22 Chapter 6 Installing, Managing, and Troubleshooting Hardware Devices and Drivers
When troubleshooting USB devices, you must be aware that the problem could be a
result of general USB issues or be a problem with the device itself. Usually, but not
always, general USB issues affect more than one device. If you suspect a problem with
a specific device, uninstall the device by using Device Manager, disconnect the device
from the computer, and then restart the computer. After the computer restarts, reconnect
the device and let Plug and Play detect, install, and configure it again. If the device
still does not function correctly, investigate the possibility that the device is damaged in
some way or that you need to obtain updated drivers from Microsoft or the device
manufacturer.
Smart Card Readers
Smart cards are small, credit card–sized devices that are used to store information.
Smart cards are generally used to store authentication credentials, such as public and
private keys, and other forms of personal information. They are highly portable, allowing
users to easily carry their credentials and other personal information with them.
A computer must have a smart card reader to access a smart card. The reader is generally
a PS/2, USB, or PC Card device, although some computers have smart card readers
built in. Windows XP supports Plug and Play smart card readers that follow the Personal
Computer/Smart Card (PC/SC) standards. A manufacturer might provide a device
driver for its legacy smart card device, but Microsoft recommends using only Plug and
Play smart card readers.
In addition to installing drivers for a smart card reader, you must enable the Smart Card
service for Windows XP Professional to read smart cards. After you have installed and
configured the smart card reader, make sure that the Smart Card service is started by
using the Services snap-in in Computer Management.
Modems
Analog modems connect a computer to a remote device through the Public Switched
Telephone Network (PSTN). Modems are often used to connect to the Internet through
an Internet service provider (ISP) or to connect to a remote private network, such as a
corporate network.
A modem can be either an internal or an external device. Internal modems connect to
one of the computer’s internal expansion slots. External modems connect to one of the
computer’s serial or USB ports.
You can manage modems through the Phone And Modem Options tool in Control Panel
and through Device Manager. In Control Panel, select Printers And Other Hardware;
then select Phone And Modem Options. In the Phone and Modem Options dialog box,
on the Modems tab, double-click a modem to open a modem’s Properties dialog box.
The Properties dialog box allows you to control speaker volume for the modem or to