Device Manager Showing Yellow Exclamation Point. Why?

[Carbo]

Running Windows 7 on my Dell XPS L501X.
In Device Manager>Intel WiUSB>USB-IF xHCI USB Host Controller, there appears a yellow exclamation point. When I open Properties the message says "This device is not working properly because Windows cannot load the drivers required for this device. (Code 31)" When I click on Update Driver, Windows says the latest driver is already installed.
Any ideas what this is about? Thank you.

 

[Bubbaleone]

Yellow Exclamation Mark for USB-IF xHCI USB Host Controller Intel WiUSB


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[Carbo]

That was it. Thank you!