单项选择题
A.From a computer that runs Windows 7， change the file system of the USB drive.
B.From a computer that runs Windows 7， disable BitLocker To Go for the USB drive.
C.Log on to Windows XP as member of the Administrators group.
D.Log on to Windows XP by using a user account that has an Encrypting File System （EFS） certificate.
单项选择题 You have a portable computer that runs Windows 7. The computer is joined to a domain. Multiple users logon to the computer. You need to prevent the computer from displaying the username of the last user whologged on. What should you do？（）
单项选择题 You have a standalone computer that runs Windows 7. Multiple users share the computer. You need toensure that you can read the content of all encrypted files on the computer. What should you do?（）
单项选择题 You have a computer that runs Windows 7. You create an Encrypting File System (EFS) recovery key andcertificate. You need to ensure that your user account can decrypt all EFS files on the computer. Whatshould you do?()