My hard drive failed or I accidentally deleted files — can data recovery help?

If it's an accidental deletion or format, stop using that drive immediately — every new file written reduces the chance of recovery. Software recovery (we use industry-standard tools) has a good success rate if caught early. If the drive is physically damaged (clicking noises, not detected at all), it needs a specialist clean-room lab — costly, but sometimes the only option for truly critical data like a thesis or years of photos. We've recovered everything from accidentally-deleted camera memory cards to a blue-screen-looping desktop with unsaved thesis data.