What is a common use of the CHKDSK command?

The CHKDSK command is primarily used to check the integrity of a hard drive and to repair logical file system errors. When you run CHKDSK, it scans the disk for issues such as bad sectors, lost clusters, cross-linked files, and directory errors. This tool can help prevent data loss by identifying and fixing corruption before it leads to more significant problems.

Understanding that CHKDSK focuses on checking the file system integrity distinguishes its purpose from other tasks. For example, deleting temporary files is done using commands like "Disk Cleanup," while defragmenting a hard drive is accomplished with the Disk Defragmenter tool, which reorganizes fragmented data to improve access time. Formatting a hard drive involves erasing all data and preparing it for new data storage, which is a different function and not related to integrity checking. Thus, the main use of CHKDSK is indeed linked to the assessment and maintenance of a hard drive's integrity, making that answer the most appropriate choice.