单项选择题 You run a Windows Defender scan on your computer.  You notice a valid program listed in Quarantined Items.  You need to use this program on your computer.  What should you do？（）

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？（）