单项选择题
A.From Recovery， restore a system restore point.
B.From the Previous Versions tab of App1.exe， click the Restore button.
C.Start the computer， press F8 and then use the Last Known Good Configuration.
D.Create a system repair disc and then start the computer from the system repair disc.
单项选择题 You manage several computers that run Windows 7. A user wants to roll back a driver. The user opens thedevice properties in Device Manager and discovers that the Roll Back Driver option is unavailable. Youconnect to the computer by using Windows Remote Assistance. You need to roll back the driver to itsprevious version. What should you do first?（）
单项选择题 You have a computer that runs Windows 7. You update the driver for the computer s video card and thecomputer becomes unresponsive. You need recover the computer in the minimum amount if time. What should you do?（）
单项选择题 You have a computer that runs Windows 7. You perform regular data backups and system image backups.The computer experiences a hard disk failure. You replace the failed hard disk. You need to recover thecomputer to the previous Windows 7 environment. You start the computer from the Windows 7 installationmedia. Which recover option should you select?（）