Fix-It Utilities Make your PC run like new! Includes Anti-Virus, Anti-Spyware, hardware diagnostics, registry fixer, and more!
Partition Commander Now it's easy for anyone to safely partition their hard drive! You can reclaim waste disk space, organize files, even add new OSes.
PC Mover Move applications, files and settings from one PC to another. Handles Windows upgrades too, even XP 32-bit to Windows 7 64-bit!
Disk Defragmenter NTFS Module
Dfrgntfs.exe is a command line utility to defragment NTFS files so they reside in continuous locations. As drive becomes fragmented, the time it takes to read and write files will degrade. Running the defragger will often help to improve the system's performance. Current versions of Window will perform this action in the background and a Windows GUI version is also available as dfrgui.exe.
Dfrgntfs.exe is a 32/64-bit executable for a graphics UI style application.
This directory holds the 32-bit system files on the 64-bit editions of Windows. WOW stands for Windows On Windows. When a 32-bit program runs, Windows will simulate this directory as being c:\windows\system32 for backwards compatibility.
The WinSxS directory holds Windows Side-by-Side DLLs. WinSxS allows multiple versions of the same DLL (code libraries) to exist on the same system. This ensures that every application will get the DLL version they were tested and designed for. The result is improved application and system stability. See details for full directory location.
There are no known security risks in using Dfrgntfs.exe assuming it has not been modified or replaced by virus or malware and it resides in the default directory. This file is installed as part of the Windows operating system.
files are required when running this program. These may call other files, and there can be additional required files not in this list.
While we believe this information up to date and accurate, FAQware is not responsible for any inaccuracies. If you find something that is out of date or inaccurate, please let us know at
so we can correct it.