Windows 2000 supports the Windows NT filesystem NTFS 5 , the Encrypted File System ( EFS ) , as well as basic and dynamic disk storage . Dynamic disk storage allows different types of volumes to be used ( a volume is an area of storage on a hard disk that has been formatted with its own file system structure ) . All versions of the operating system support the Windows NT file system , NTFS 3.0 , the Encrypting File System , as well as basic and dynamic disk storage .