Chkdsk is a computer utility program that is used to check the integrity of the files and folders stored on a computer's hard drive. This utility can be used to diagnose and fix errors that can occur on a computer's hard drive. Chkdsk is also known as Check Disk and is used by many computer technicians to troubleshoot a variety of computer issues. Chkdsk can also be used to repair corrupt files and folders, identify bad sectors on a hard drive, and to check for file system errors. Chkdsk is a powerful utility that can be used to diagnose and repair a variety of problems that can occur on a computer.
HD Tune checks for unreadable clusters but does not perform file integrity checks for cross-linked clusters, index entry problems, etc.