UltraDefrag is a powerful open source disk defragmentation tool for Windows that helps optimize your hard drives for better performance. It can be run from the command line or as a GUI application. It works with any kind of hard drive, including SSDs, and performs both quick and full defragmentation. UltraDefrag can also move system files to the beginning of the drive, helping to further speed up your system. It supports native 64-bit and can be used on FAT, NTFS, exFAT, and ReFS file systems. It is a free, easy-to-use, and effective disk defragmentation tool for Windows.
Bundleware VirusTotal returns the following: Win32 / Bundled.Toolbar.Google.D potentially unsafe