单项选择题
A.Create a System Restore point.
B.Perform an Automated System Recovery （ASR） backup and restore.
C.In the Backup and Restore Center window， click the Back up files button.
D.In the Backup and Restore Center window， click the Back up computer button.
单项选择题 You share your computer with two users who belong to the Users group. You need to ensure that all users are informed of new updates. What should you do？（）
单项选择题 After you install a new update， an application on the computer fails to run. You need to remove the update. What should you do？（）
单项选择题 ou share a computer with other users. You need to ensure that all application and device driver failure reports for this computer are submitted to Microsoft Problem Reports and Solutions. What should you do？（）