單項(xiàng)選擇題
A user, Jill, is reporting her mouse is moving when Jill is not moving it, and the computer is running slower than normal. Which of the following is the FIRST action that Karen, a technician, should take?()
A. Run chkdsk.
B. Run an antivirus program.
C. Replace the faulty mouse.
D. Remove any recently added hardware.