Recover data from formatted external HDD

Recover data from formatted external HDD – format hdd data recovery software free download to recover files from formatted hard drive in Windows 10/Windows 7/Windows 8/Windows 8.1/Windows XP PC due to accidentally formatted, quick format, full format, reformatting hdd from seagate wd toshiba transcend buffalo lacie hitachi HGST Iomega hp Fujitsu lenovo acer asus dell maxtor.

Data is stored on a hard drive in a series of logical blocks. Each block is delimited by markers identifying its start and end, error detecting and correcting information, and space between blocks to allow for minor timing variations. These blocks often contained 512 bytes of usable data, but other sizes have been used. As drive density increased, an initiative known as Advanced Format extended the block size to 4096 bytes of usable data, with a resulting significant reduction in the amount of disk space used for block headers, error checking data, and spacing.

The process of initializing these logical blocks on the physical disk platters is called low-level formatting, which is usually performed at the factory and is not normally changed in the field. High-level formatting writes data structures used by the operating system to organize data files on the disk. This includes writing partition and file system structures into selected logical blocks. For example, some of the disk space will be used to hold a directory of disk file names and a list of logical blocks associated with a particular file.

Examples of partition mapping scheme include Master boot record (MBR) and GUID Partition Table (GPT). Examples of data structures stored on disk to retrieve files include the File Allocation Table (FAT) in the DOS file system and inodes in many UNIX file systems, as well as other operating system data structures (also known as metadata). As a consequence, not all the space on an HDD is available for user files, but this system overhead is usually small compared with user data.

“unformat” to recover files from formatted HDD after quick format recovery, full format, accidentally formatted, reformatting, High-level formatting, Low-level formatting.

“recover partition”  to recover formatted exfat partition, ntfs partition, fat32 partition, lost partition, changed, damaged partition.

And if the size or position of partition is changed by format, it can not recover with “unformat” so you can use “recover partition” mode.

“undelete” to recover deleted files from formatted HDD after Virus attack, Recycle bin clear, disk cleanup, Press shift del by mistake, permanently empty recycle bin, shift delete, accidentally deleted by a mistake.

“Full Scan” to recover data from formatted HDD which can not be found with “undelete” and “unformat” and “recover partition”, after showing an error, display as raw file system, unformatted, unknown partition, unpartitioned, needs to be formatted, or the file system is not exfat, not fat32, not ntfs.

A hard disk drive (HDD), hard disk, hard drive or fixed disk is an electromechanical data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material. The platters are paired with magnetic heads, usually arranged on a moving actuator arm, which read and write data to the platter surfaces. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially. HDDs are a type of non-volatile storage, retaining stored data even when powered off.

Most popular hdd manufacturers:

Seagate (seagate data recovery) wd (wd data recovery) toshiba transcend buffalo lacie hitachi HGST Iomega hp Fujitsu lenovo acer asus dell maxtor.

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