Bad sectors occur when a hard drive cannot read certain data. Here’s how bad sectors occur and several tips for avoiding data loss.

Solid state drives (SSDs) store files electronically using non-volatile memory. Here’s an overview of how they provide reliable data storage.

Data recovery software might fix a corrupted hard drive — or cause permanent data loss. Before attempting recovery, understand the risks.

A hard drive controller transfers data to and from the computer’s CPU. Here’s an overview of this component along with common failure scenarios.

The hard drive actuator assembly includes several components that read and write data from the platters (or disks). Here’s an overview.

A hard drive’s landing zone (or LZone, or LZ) identifies the parking location of the read/write heads. Here’s a detailed description.

Buying used hard drives can save you money, but “refurbished" storage media carries significant risks. Here’s what you need to know.

All electronic devices need to be connected to a surge protector, and that’s particularly true for devices that store data. Hard drives rely on controllers, which allow the drive to transfer information to (and from) your computer. A sudden surge...

An improper PC shutdown probably isn’t a big deal — but it could cause a hard drive failure. Here’s an overview of the risks.