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During the POST, you receive a message stating: Keyboard not present. Present F1 to continue. What are the most likely causes of this error message? |
A stuck key on the keyboard. A poor keyboard connection Explanation If the keyboard is not detected during the POST, the keyboard is probably not attached to the computer correctly. Check that the keyboard is securely connected to the keyboard port. While a bad keyboard will also result in this error, you should first check the keyboard connection to the computer before replacing the keyboard. This error is also commonly caused by a stuck key on the keyboard. |
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You are trying to connect a new USB device to your computer. You install the driver, then connect the device to an open USB port. The device does not work. What should you do first? |
Make sure the USB device is plugged in properly. Explanation The first thing to check would be if the USB device is plugged in properly. If that doesn’t correct the problem, you might try a different USB cable before doing more extensive troubleshooting. You should only replace the device or install a new USB controller card after verifying where the problem lies. For example, if you try the device on another computer and it still doesn’t work, you might assume that the device is defective. If the device works on a different computer, then the USB ports on the first computer might be defective. |
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A user complains that his USB scanner no longer works. You check Device Manager and see an icon with a black down arrow on it. What should you do? |
Enable the device in Device Manager Explanation An icon with a black down arrow through it in Device Manager means that the device is disabled. Simply re-enable the device. An icon with an exclamation mark identifies a device with a problem. Many times this can be fixed by updating the driver, although you might need to replace the device if it no longer works properly. |
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You have just installed a new device in your Windows system. After installation, you can’t use the device. You check Device Manager and find an icon for the device with a yellow exclamation mark over it. What should you do? |
Download the latest driver from the manufacturer’s Website. Explanation The first thing to try would be to obtain the latest driver for the device. In this scenario, Windows detected the device, a suitable driver for it. Use the Add Legacy Hardware wizard to install legacy (non Plug and Play) devices. An icon with a black down-arrow over it indicates a disabled device. Replacing the device should only be done after performing other troubleshooting tasks. |
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A user installs a new graphics application on her Windows system. During the installation process, the application prompts the user to load a custom video driver that has been optimized for the application. She does so and then completes the installation. Several days later, the user reports that her display doesn’t seem to be working properly under some conditions. To fix the problem, you need to reload the old video driver. How could you accomplish this? |
Use Device Manager to roll back the video driver. Revert the system to a restore point prior to installing video driver. Explanation To roll back to a previous driver, access Device Manager and then use the Roll Back Driver option available in the video driver’s properties. You may need to boot the system into Safe Mode first if the problem is serious enough to make the display difficult to see. Alternatively, you could also revert the system to a prior restore point that was created before the problematic driver was installed. You should not disable the driver in this situation. The Last Known Good configuration boot option is only available on Windows 7 and earlier systems. Even if it were available, it would not work in this scenario because the system has been rebooted and the user has logged in since the change was made. Running a startup repair would not correct a problem with an erratic video driver. |
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You have just connected a new USB device to your Windows system. You used the installation disc that came with the device to install the drivers needed to support the device. After installation, the system frequently crashes when you try to access the new device. What should you do? |
Download and install the latest driver from the manufacturer’s Website. Explanation The first thing to try would be to download and install the latest driver for the device from the manufacturer’s website. You would use the Add Hardware wizard to configure legacy (non Plug and Play) devices. Reinstalling or replacing the device should only be done after performing other troubleshooting tasks. |
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You have just installed several devices at once to a computer, but now the computer fails to boot properly. What should you do? |
Remove all of the newly added devices and install them one at a time. Explanation When installing, you should always install one device at a time. In that way, if a problem occurs after installing the new device, you know that the new device has caused the problem. Swapping components at this point might not help as you have not yet identified the component that is most likely causing the problem. |
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Which system utility would you use to troubleshoot hardware devices, examine and control the resources used by specific devices, and install updated device drivers? |
Device Manager Explanation Use Device Manager to troubleshoot hardware devices, examine and control the resources used by specific devices, and install updated device drivers. System Restore takes periodic snapshots, called restore points, of the system configuration. Network acts as a built-in network browser showing all networks and shared folders to which the user has access. The Notification Area displays icons that represent the application and processes that are running behind the scenes on your computer such as audio volume, security programs, and connectivity to the network. It also displays the time and date. The Control Panel contains various utilities that change how a computer looks and behaves. |
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You have just installed a new hardware device, upgraded the driver, and installed the custom software that came with the device. Now you can’t get the device to work. What should you do first? |
Run any diagnostic software that came with the device. Explanation As a first step, run any diagnostic software that came with the device. Using an older driver, like one that came on the installation CD, will rarely correct a problem. In addition, you should only try this and the other solutions after performing the self-test and trying the obvious fixes. |
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You recently installed a fiber-optic network board in an expansion slot in your system’s motherboard. You no longer need to use the integrated UTP network board that is integrated in the motherboard. Click the option you would use in the properties of the integrated network adapter in Device Manager to disable it. |
Driver Explanation You can disable a device in Device Manager by accessing its properties and then selecting Disable on the Driver tab. You set device-specific settings on the Advanced tab. For example, you can use this tab to set the network adapter’s speed and duplex configuration. The Details tab displays extended information about the device. The Resources tab is used to view the hardware resources used by the device. |
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In which of the following situations would driver rollback be the best tool to use? |
You recently installed a new video driver and now the system behaves erratically. Explanation Driver Rollback would be best suited to a situation where you’ve installed a misbehaving driver and need to revert to an older version of the driver. Driver Rollback preserves the old driver every time you install a newer driver. Therefore, you could use Driver Rollback to uninstall the current driver and restore the previous version. |
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