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.

单项选择题

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.

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