单项选择题 You need to identify if malware is causing performance issues on your computer. What should you do?（）

单项选择题 You have a computer that runs Windows Vista. You need to configure your computer so that you can interact with your desktop when you are prompted for user account control permissions. What should you do?（）

单项选择题 You install a custom application on a computer that runs Microsoft Windows XP. The application stores each user’s data in the %programfiles%\app1\data folder on the computer. You install the custom application on a computer that runs Windows Vista. On the Windows Vista computer, you back up the %programfiles%\app1\data folder and notice that the backup contains no data. You need to back up the application’s user data on the Windows Vista computer. What should you do?（）