Managing and Troubleshooting Hardware If you suspect that
Managing and Troubleshooting Hardware If you suspect that an updated driver is causing the system or device problems you are experiencing, you can attempt to recover the system to the previously installed device driver. Double-click the device in Device Manager to display the driver s Properties dialog box. Then in the Driver tab, click Rollback Driver. Chapter 13 Note You can roll back only if you ve updated the driver. If you haven t, a backup driver file won t be available. Instead of being able to roll back the driver, you ll see a prompt telling you that no driver files have been backed up for this device. If you re having problems with the device, start the troubleshooter by clicking Yes. Uninstalling and Reinstalling a Device Driver Windows device drivers for Plug and Play devices are loaded and unloaded dynamically. You can remove the driver for a device only when the device is plugged in. This means the proper way to remove a device from a system is first to uninstall its related device driver and then to remove the device from the system. One reason for uninstalling a device is to remove a device that is no longer used or needed. Start by uninstalling the related device driver. Double-click the device in Device Manager to display the driver s Properties dialog box. Then in the Driver tab, click Uninstall. When prompted, click OK to confirm that you want to remove the driver. Windows Server 2003 will then remove the related files and Registry settings. At this point, you can shut down the system and remove the related hardware component if you want to. However, you might first want to check to see how the computer operates without the device in case some unforeseen problem or error occurs. So, rather than removing the device, you ll want to disable it. Disabling the device prevents Windows from reinstalling the device automatically the next time you restart the system. You disable a device by right- clicking it in Device Manager and then selecting Disable. Sometimes when you are troubleshooting and trying to get a device to work properly, you might want to uninstall to unplug the device temporarily. Here, you could disable the device and then monitor the system to see whether problems previously experienced reoccur, or you could reinstall the device to see whether normal operations are restored. Uninstalling and then reinstalling the device forces Windows to go back to the device s original device and Registry settings, which can sometimes recover the device. After you ve uninstalled a device driver, one way to get Windows Server 2003 to reinstall the device is to reboot the computer. You can also try to rescan for devices using Device Manager by choosing Scan For Hardware Changes on the Action menu. Either way, the operating system should detect the uninstalled device as new hardware and then automatically reinstall the necessary device driver. If this doesn t happen, you must reinstall the device manually using the Add Hardware Wizard as discussed earlier in this chapter. Part 4: Managing Windows Server 2003 Systems
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