Downloading Smart Defrag 2 2.2 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. The following version: 2.2 is the most frequently downloaded one by the program users.
The program lies within System Utilities, more precisely System Optimization. We recommend checking the downloaded files with any free antivirus. SmartDefrag.exe is the most common filename for this program's installer. This free software was originally designed by IObit.
From the developer:
Disk fragmentation is generally main cause of slow and unstable computer performance. Smart Defrag 2 helps defragment your hard drive most efficiently. Smart Defrag 2 not only defragments computer deeply but optimizes disk performance. With "Install it and forget it" feature, Smart Defrag 2 works automatically and quietly in the background on your PC, keeping your hard disk running at its speediest.
You may want to check out more software, such as Toolwiz Smart Defrag, Smart Defrag or Smart Game Booster, which might be similar to Smart Defrag 2.
System Optimization
System Optimization