Which of the following should Joe do FIRST to help troubleshoot the problem?

Joe, a technician, has been tasked to verify a new device has been installed and correctly configured on a Windows 7 computer.
He has now confirmed the new device is not working properly. Upon opening the Device Manager, he sees several icons.
Which of the following should Joe do FIRST to help troubleshoot the problem?
A. Upgrade the antivirus signatures and disable system restore
B. Check any items with yellow exclamation points
C. Check any items with green checkmarks
D. Disable items with a red X over the icon

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