单项选择题
A. Tell the user to use Safe Mode.
B. Disable the Windows Firewall Service.
C. Turn off the System Restore.
D. Change to Performance Mode.
单项选择题 A customer’s laptop display panel assembly had just been replaced. The customer notices that the wireless network adapter is enabled but detecting a weak signal. Which of the following is the MOST likely cause?（）
单项选择题 Mike, a technician, is troubleshooting a printer issue. The print spooler for a local printer continues to fill up with new jobs and no jobs are being processed at the printer. Which of the following is MOST likely the cause?（）
单项选择题 Which of the following commands scans and verifies system protected files?（）