The computer performance becomes increasingly slow and your files can not be accessed. You may find hard drives frequently crashing or hard to boot up. Hard drive failure/malfunction is one of the most often seen data loss scenarios. Here are the 4 common scenarios that you might stumble upon, just check them out. So how to recover data from HDD? Before applying the recovery methods, it’s important to identify the data loss situations. They don’t have moving parts or use magnetism to store data, which makes them durable and less prone to damage. With a data transfer speed of 550 MB/s, SSDs are the latest type of hard drive. They can be connected to peripheral devices and transmit data at 320 MB/S internally or externally. SCSI hard drives upgrade in speed, storage, and operations.

They supersede PATA in size and power consumption with better pricing. Serial Advanced Technology Attachment (SATA)Īdopting parallel and signaling technology, SATA hard drives transfer data one bit at a time with a speed of 150-300MB/S. Based on similar signaling technology, they can transfer multiple bits of data simultaneously. PATA hard drives are made of mechanical moving parts. Parallel Advanced Technology Attachment (PATA) Generally, there are 4 types of HDD and they are: Installed inside a computer, HDDs are non-volatile devices that control the reading and writing of the disk that provides data storage.

Before introducing how to recover data from HDD, let’s have a basic knowledge of it.

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