You run Windows Defender on your computer and receive the following warning message: "Windows Defender Definitions haven’t 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?（）

A.A
B.B
C.C
D.D

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?（）

A.A
B.B
C.C
D.D

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?（）

A.A
B.B
C.C
D.D

单项选择题You install Windows Vista on a new computer by using the default settings. You create an administrator account and a standard user account. You log on to the computer as the standard user and attempt to install a new application. You are prompted for user credentials to complete the installation. You need to install the application on the computer. What should you do?（）

A.A
B.B
C.C
D.D

单项选择题You have a computer that runs Windows Vista. You need to ensure that all local administrators can install applications without being prompted for approval. What should you do?（）

A.A
B.B
C.C
D.D