NTFS
EFS stands for Encrypted File System and is used to encrypt folders and files in Windows XP or Vista.This encryption works ONLY when using the Windows NTFS file system!
The command 'cipher' calls a program that is integrated with Windows that can encrypt-decrypt files.
Yes. Ubuntu can read files and directories created by a Windows system.
Only the files and programs that users specify are available offline
Cipher
In Windows, a folder is basically a container to hold your files. It is similar to folders in real life. In a file box (in this case, a computer) it holds many folders (in this case, folders). But inside the folders, are pictures and doucuments. Same thing on Windows. It can also hold other folders, video, notepad doucuments, Windows Media Player files, and lots of other files of sorts. Hope this helper, Answers
It is used to store offline files and folders
Since there's no BitLocker feature in Windows XP, you can only use 3rd party software to encrypt your drive. You can try Kakasoft Advanced Folder Encryption, which is also good at encrypting files/folders on drive and hiding hard drive on computer. You can find it here: http://www.kakasoft.com/folder-encryption/
Windows Explorer
Folders
In windows operating system it is called "Windows Explorer", file name: "explorer.exe".
All files in Windows are in folders even when it seems not. But by removing many files from your desktop and have a neat folder system you will locate files quicker and may increase Windows performace slightly.