- Sebastian Evers
A head crash, also called "Click of Death", means the immediate contact of one or more read-write heads with the ferromagnetic platter surface(s) of a hard drive. It results in permanent physical damage of the magnetic storage layer. Further operation bears the risk of a so-called fatal head crash causing data loss. If you hear beeping, grinding, scratching, clicking or clacking noises you shouldn't turn your data medium on anymore to be of the safe side.