Taskbar icon and defrag?

The defragmentation feature, from Condusiv, is an embedded technology within the ReadyCache/ExpressCache product sold and distributed by SanDisk. This feature will actively remove fragmentation, on the HDD only, as the system is performing it’s normal operations. This is run as a background task and with only run when the system has cycles to spare. There is no user interface or documentation for this featured technology.