A user named User1 has a computer named Computer1 that runs Windows XP Professional. User1 has a folder that contains encrypted files. You purchase a new computer named Computer2. You back up User1's files and restore them to Computer2. You need to ensure that User1 can access the encrypted files on Computer2.
What should you do?（）

You have a computer that runs Windows XP Professional. Two users named User1 and User2 share the computer. User1 and User2 encrypt files on the computer. User1 encrypts a file named file1. doc. You need ensure that both User1 and User2 can view the contents of file1. doc.
What should you instruct User1 to do?（）