Ch08indd 315 121409 24938 pm all in one comptia

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Unformatted text preview: en. The only exception to this rule is USB and FireWire deviceswith these you should always install the driver first. ch08.indd 314 12/14/09 2:49:37 PM All-In-One / CompTIA Network+ All-in-One Exam Guide / Meyers & Jernigan / 170133-8 / Chapter 8 All-In-One Chapter 8: Expansion Bus 315 Figure 8-29 ch08.indd 315 Properly seated expansion card; note the tight fit between case and mounting bracket and the evenness of the card in the slot. 12/14/09 2:49:38 PM All-In-One / CompTIA Network+ All-in-One Exam Guide / Meyers & Jernigan / 170133-8 / Chapter 8 CompTIA A+Certification All-in-One Exam Guide 316 Figure 8-30 Part of a Readme file showing the driver version Removing the Old Drivers Some cards—and this is especially true with video cards—require you to remove old drivers of the same type before you install the new device. To do this, you must first locate the driver in the Device Manager. Right-click the device driver you want to uninstall and select Uninstall (Figure 8-31). Many devices, especially ones that come with a lot of applications, will have an uninstall option in the Add/Remove Programs (Windows 2000), Add or Remove Programs (Windows XP), or Programs and Features (Windows Vista) applet in the Control Panel (Figure 8-32). Unsigned Drivers Microsoft wants your computer to work, truly, and the company provides an excellent and rigorous testing program for hardware manufacturers called the Microsoft Windows Logo Program. Developers initially use software to test their devices and, when they’re ready, submit the device to the Windows Hardware Quality Labs (WHQL) for further testing. Hardware and drivers that survive the WHQL and other processes get to wear the Designed for Windows logo. The drivers get a digital signature that says Microsoft tested them and found all was well. Not all driver makers go through the rather involved process of the WHQL and other steps in the Windows Logo Program, so their software does not get a digital signature from Microsoft. When Windows runs into such a driver, it brin...
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