[v29.1] O&O Defrag – Efficient and high-powered HDD & SSD defragmenter

When you've tried many ways to clean up and optimize your Windows system, but have seen no obvious results (system or program launches and runs slowly, or even crashes easily), do remember to perform defragmentation to your disk, then everything may be fine. As we all know, there have been so many free or commercial disk defragment software, such as Diskeeper, PerfectDisk, Contig, JkDefrag, UltimateDefrag, Defraggler and Ashampoo Magical Defrag.