UltraDefrag Portable 5.0.5 is an easy to use disk defragmenter and optimizer packaged as a portable app so you can defragment and optimize your hard drives on the go. Both the 32-bit and 64-bit versions are included and the right one is automatically used. It's packaged in PortableApps.com Format so it can easily integrate with the PortableApps.com Platform. And it's open source and completely free.

UltraDefrag Portable is packaged in a PortableApps.com Installer so it will automatically detect an existing PortableApps.com installation when your drive is plugged in. It supports upgrades by installing right over an existing copy, preserving all settings. And it's in PortableApps.com Format, so it automatically works with the PortableApps.com Platform including the Menu and Backup Utility.

UltraDefrag Portable is an easy to use disk defragmenter and optimizer with lots of great features:

FEATURES
- Driver:
Currently FAT, exFAT and NTFS are supported. (enhanced in 5.0.0)
Defragmentation of files and folders including system files and file system meta files. (enhanced in 5.0.0)
Full optimization of the drive, which processes all files despite of their fragmentation. (enhanced in 5.0.3)
Quick optimization of the drive, which mainly processes fragmented files. (enhanced in 5.0.3)
MFT optimization, which processes the MFT only. (enhanced in 5.0.1)
Filtering of files to process by name, fragment count and size.
Drive processing can be interrupted automatically after a defined amount of time.
User defined log file creation, which highly simplifies reporting bugs. (enhanced in 5.0.5)
Drives needed to be checked by CHKDSK are excluded. (enhanced in 5.0.5)
- Graphical User Interface:
Graphical display of the drives cluster map. (enhanced in 5.0.5)
Modern design with menus and tool bar. (enhanced in 5.0.3)
The hight of the drives list can be adjusted. (new in 5.0.0)
The current progress and all important information are displayed in the drives list. (enhanced in 5.0.4)
A final action can be specified to be executed after processing the drives. (new in 5.0.0)
Color coding of the usage of the cluster map. (enhanced in 5.0.5)
Localization can be done by the user or by one of the 58 included language packages. (enhanced in 5.0.5)
- Command Line Tool:
Useful for automation through scheduled tasks or batch scripts.
Integrated into Explorer's context menu. (enhanced in 5.0.5)
Specify options through command line arguments or environment variables. (enhanced in 5.0.0)
On demand, display of the graphical cluster map.
- Boot Time Interface:
Useful to process locked system files. (enhanced in 5.0.0)
An interactive mode is available too. (enhanced in 5.0.0)
- Reports:
Available as plain text and HTML page. (enhanced in 5.0.3)
Includes all information about the fragmented files. (enhanced in 5.0.4)

System Requirements
Desktop PC: Windows NT 4.0, 2000, XP, Vista, 7
Server: Windows NT 4.0, 2000, 2003, 2008, 2008 R2
32-bit, 64-bit and Itanium Editions