Drivers on my computer, removing themselves and can not be found

I have TuneUp Utilities on my Windows 7 PC. In the correction of the problems pane, it says pilots suddenly cannot be found. The following drivers in the devices list do not work...

Photo of errors in hereDevice Manager.
Photo of TuneUp Utilities discovered the problem here.
I can't update the driver as TuneUp said, because Device Manager says he "is not found."
What is going on? They are very well one day and screwed to the top of the other. Do I need to worry?

Hello

 
What is the number and the model of the computer?
 
Because device drivers are missing, you should contact the manufacturer of the computer for extra support.

Tags: Windows

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