Report Defragging Policy for SSDs in Wise Registry Cleaner Posted October 12, 2013 "Analyze" means just reading, not means to write or move fragment files. So, an analysis of the SSD is not detrimental to its life. When you click "defragment " button, first, Wise Disk Cleaner will detect (not analyze) your disk whether is an SSD, if yes, it will ask you whether continue to do defragment, if you click "no", it will cancel analysis and defragment on ssd, skip to analyze next disk. Thanks, Wisecleaner. That answers my initial misgivings.