Eusing Free Registry Defrag (portable) v2.3

Eusing Free Registry Defrag is a tool that defragments the registry, removing gaps, fragments and wasted space in files.

From the developer's description, it doesn't seem to actually defragment the registry hive files (and this would be impossible while the operating system is running anyway), rather it removes blank data and reduces the size of registry files.

The effectiveness of these tools to increase performance or stability of a system is disputed.

Key Features:

• Improve your Windows PC's overall performance and stability
• Reduce the amount of time it takes your system to boot
• Save memory by compacting the registry
• Prevent registry corruption by building a fresh copy of the registry
• A simple, user-friendly interface with which you can safely compact the registry
• 100% Spyware FREE, NOT contain any Spyware, Adware or Viruses

NOTE: This portable version includes no installer.