The glossary below contains many of the terms you will find in common use throughout the Symantec Security Response website. Please refer to this list to find definitions of terms and answers to other Internet security-related questions.


An advanced file system designed for use specifically within Windows operating systems. It supports file system recovery, extremely large storage media, long file and folder names, and file and folder compression. NTFS is also called the Windows NT file system.

If you want to extend a dynamic volume in SFW, you must format it with NTFS.

See also FAT and FAT32.