单项选择题
A.Reinstall the application to another location.
B.Restore the program from the Quarantined Items list.
C.Remove the program from the Quarantined Items list.
D.Repair the program from the Programs option in Control Panel.
单项选择题 You recently installed an application on your computer. The application is configured to automatically start. This application might cause your computer to run slower. You need to prevent the application from auto starting without uninstalling the application. What should you do？（）
单项选择题 You run Windows Defender on your computer and receive the following warning message： "Windows Defender Definitions havent been updated." You need to ensure that Windows Defender definition files are updated. What should you do？（）
单项选择题 You need to identify if malware is causing performance issues on your computer. What should you do？ （）