My taskbar keep turning grayish and after i lose my nouns?!?

please lend a hand me. The taskbar turns to gray (for no reason at all). I clicked on the properties and afterwards the computer's apperance and it was still contained by the Windows XP format with the failure to pay blue color. Then all of a sudden i lost my nouns and all of its devices! PLEASE HELP!

Answer:
It might be a virus, do a virus scan.

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