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If you receive this message, click Locate and install driver software (recommended). You may receive a message that states that Windows has to install driver software for your unknown device. In the Device Manager dialog box, click the Action menu, and then click Scan for hardware changes. Right-click the device, and then click Properties. In the list of device types, click the kind of device, and then locate the specific device that is not functioning. If no exclamation point appears next to the name of the device and the device does not function correctly, manually uninstall and reinstall the device drivers. Step 2: Uninstall and reinstall the device drivers If no exclamation point appears next to the name of the device that is not functioning correctly, go to step 2, "Uninstall and reinstall the device drivers."

Go to step 3, "Use Windows Update to find a device driver." If an exclamation point appears next to the name of the device that is not functioning, Device Manager cannot find the device driver. In the list of device types, click the type of device, and then locate the specific device that is not functioning. If you are prompted for an administrator password or for a confirmation, type the password, or click Continue. The Device Manager dialog box is displayed.

Follow these steps to determine whether Device Manager can find the device and to install or reinstall the device driver as necessary: Step 1: Determine whether the device driver is found in Device ManagerĬlick Start, type Device Manager in the Start Search box, and then press ENTER.Ĭlick Continue.

The device driver might not be installed or it might not be installed correctly. Additionally, if you open Device Manager, you might see an exclamation point next to the name of the hardware device. SymptomsĪfter you install a Windows Vista Service Pack on a computer that is running Windows Vista, a hardware device does not work correctly. This article is intended for a beginning to intermediate computer user. Windows Vista Service Pack 2 Windows Vista Ultimate Windows Vista Enterprise Windows Vista Business Windows Vista Home Premium Windows Vista Home Basic Windows Vista Starter More.