: The developers state the process does not delete existing data, though it is always recommended to back up a failing drive before running any repair utility. User Experience & Performance Effectiveness
: Use standard, free utilities to read your drive's "S.M.A.R.T." (Self-Monitoring, Analysis, and Reporting Technology) data. This provides a comprehensive technical report on relocated sectors, read errors, and power-on hours. Windows "Check Disk" : You can generate a basic system report by running hdd regenerator 171 serial