100-140 Question 118
Single answerYou are troubleshooting a desktop computer that is unable to recognize a USB keyboard. You open Device Manager and notice a yellow triangle with an exclamation mark next to the 'USB Input Device' under the 'Human Interface Devices' category. What is the most appropriate next step to resolve the issue?
- A
Update the driver for the USB Input Device.
- B
Uninstall the USB Input Device and restart the computer.
- C
Disable and re-enable the USB Input Device.
- D
Replace the keyboard with a new one.
Show answer and explanation
Correct answer: A
Explanation
The yellow triangle in Device Manager indicates a problem with the driver or configuration of the hardware. Updating the driver for the USB Input Device is the most logical first step, as it can resolve compatibility or corruption issues. Other options, such as uninstalling or replacing the device, should only be considered if updating the driver does not resolve the problem.
- A. Correct.
Updating the driver is the most appropriate first step, as it ensures that the device is using the latest and compatible software to function properly. This is often recommended when a yellow triangle is present.
- B. Incorrect.
Uninstalling and restarting may work in some cases, but it is typically a secondary option after attempting to update the driver. Additionally, it may not resolve the issue if the driver itself is outdated.
- C. Incorrect.
Disabling and re-enabling the device might refresh the connection, but it will not fix an issue caused by an outdated or missing driver.
- D. Incorrect.
Replacing the keyboard is unnecessary at this stage because the issue is likely software-related, as indicated by the yellow triangle in Device Manager.