Dival jsem se i na tu defragmentaci a ve Win 7 to bylo doopravdy vyple a SSD nesly defragmentovat vubec. Ve Win 8 to pry ale SSD taky nedefragmentuje, ale upravuje to TRIM na SSD. Takze nevypinat 
In Windows 8, when the Storage Optimizer (the new defrag tool) detects that the volume is mounted on an SSD - it sends a complete set of trim hints for the entire volume again - this is done at idle time and helps to allow for SSDs that were unable to cleanup earlier - a chance to react to these hints and cleanup and optimizer for the best performance. We do not do a traditional defrag (moving files to optimizer there location for space and performance) on SSDs.Thank you for your question and I hope this clarifies the need to run the Storage Optimizer on a regular basis.