: Scans and repairs without changing or deleting existing data on the drive.

If you’re a professional, buy the latest version (supports Windows 10/11, >2TB drives). If you need 1.51 specifically, obtain it from verified preservation archives (like Internet Archive’s software collection) and verify checksums.

It works with any manufacturer: Seagate, Western Digital, Hitachi, Samsung, Toshiba. Even external USB drives (if connected before boot).

Windows and macOS include native utilities that handle bad sectors by marking them as unusable at the file-system level, preventing data from being written to damaged areas.