chkdsk is not available for raw drives - The type of the file system is raw. from hard drive,external,usb,flash,pen drive,sd card.
Use "Full Scan" mode to recover lost files if partitions show as "raw" after CHKDSK or recover files which can not be found with "undelete" and "unformat" and "recover partition",recover files from raw partition,recover files of partitons which are not NTFS,nor exfat,nor fat32 with deep and full scan .
What is raw file system?
File system is the main component of any operating system like Microsoft Windows. It is responsible for managing files and directories on your hard drive. It is very prone to failure and it may render all of your hard drive partitions invisible and inaccessible. At the same time, your computer may become unbootable and all the stored data becomes inaccessible. When a it got damaged, the file and drive becomes RAW. In such cases, you need to go for Partition Recovery solutions to retrieve missing, lost or inaccessible hard drive partitions and stored data.
CHKDSK (short for "check disk") is a system tool in DOS, OS/2 and Windows. It verifies the file system integrity of a volume and fixes logical file system errors. It is similar to the fsck command in Unix. On Windows NT operating systems, CHKDSK can also check the disk surface for bad sectors and mark them. (In MS-DOS 6.x and Windows 9x, this is a task done by Microsoft ScanDisk.) Windows Server version of CHKDSK is RAID-aware and can fully recover data in bad sectors of a disk in a RAID-1 or RAID-5 array if other disks in the set are intact. CHKDSK can be run from DOS prompt, Windows Explorer, Windows Command Prompt or Recovery Console.
RAW recovery means to read files without reference to an operating system. So after using RAW recovery function to scan the hard drive, the list of lost files will be displayed in a tree according to the file type. The RAW scan mode can locate the files without the aid of file system.
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Aidfile Recovery Software Keyfeature
support FAT32 EXFAT and NTFS file system
support Win32 and Win 64 bits
support Windows 11 & Windows 10,Windows XP, Windows 7, Windows 8,Windows 8.1, Windows Vista, Windows 2003, 2008, 2012.
MS Office document (Word, Excel, PowerPoint, Outlook) types (doc, docx, ppt, pptx, xls, xlsx, pst, etc.),photos (JPG, PNG, ICON, TIF, BMP, RAF, CR2, etc.), videos and audios (MPG, MP4, MP3, MTS, M2TS, 3GP, AVI, MOV, RM, RMVB, etc.), compressed files (rar, zip, etc.), PE files (exe, dll, lib, etc.) and so on.
Samsung,Seagate,Maxtor,Toshiba,WD,Sony,HP,IBM,Kingston,Sandisk,etc.