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What is a Headcrash?
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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.

Mechanical Damage:

  • Impact damage
  • Scratches
  • Defective, torn-off or adherent read-write heads


  • Abrasion particles on the read-write heads
  • Abrasion particles on the data medium surface
Dipl. Ing. Nicolas Ehrschwendner
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