Exam Highlights

Before taking the exam, review the key topics and terms that are presented in this chapter. You need to know this information.

Key Points

• You should consider rolling back a driver when you are sure that a new driver is causing a problem and you do not want to affect other system configurations or drivers with a tool such as System Restore.

• You must use the Add Hardware Wizard for all non-Plug and Play devices. You can use the Add Hardware Wizard or restart the computer for some Plug and Play devices.

Key Terms

Device Manager An administrative tool that you can use to manage the devices on your computer. Using Device Manager, you can view and change device properties, update device drivers, configure device settings, and uninstall devices.

Driver rollback A feature in Windows XP that permits you to reinstall (roll back) a previously installed driver. The uninstalled drivers are stored in the system_root\system32\reinstallbackups folder.

Driver signing A process in which device drivers that have passed a series of tests by Microsoft are digitally signed, enabling the operating system to determine whether the drivers are acceptable for use.

File Signature Verification Utility (Sigverif.exe) A utility that is used to scan a Windows XP system for unsigned files, providing a simple method to identify unsigned drivers.

Plug and Play A technology that enables the computer to automatically determine which hardware devices are installed on the computer and then to allocate system resources to those devices, as required, to configure and manage the devices.

System Information A utility that allows you to view the status of different components of a Windows XP system, including hardware devices.