• Free, lightweight, effective


  • Doesn't avoid SSDs

At A Glance

Defrag and optimize your 32-bit PC's hard drive with this free utility.

Manufacturer’s Description

UltraDefrag is a powerful disk defragmentation tool for Windows. It is the first open source defragmenter with full support of system locked files defragmentation. Actually all files including registry hives and paging file can be processed by UltraDefrag during the Windows boot process. Also one of the primary goals of the UltraDefrag design is doing the job as fast and reliable as possible.

Manufacturer’s Website

UltraDefrag Development Team

The Specs

Requirements 32-bit OS
Operating System Compatibility
  • Microsoft Windows NT 4.0
  • Microsoft Windows 2000
  • Microsoft Windows XP
  • Microsoft Windows Vista
  • Microsoft Windows Server 2003
  • Microsoft Windows Server 2008
  • Microsoft Windows 7
Download Details
License Type Free
File Size 0.35 MB
Total Downloads 5977