Which of the following is not a system tool?

Solution (By Examveda Team)

Doskey is a command-line utility primarily used for creating macros and recalling previously typed commands in the MS-DOS and Windows command prompt environments. It enhances the command-line interface by providing history and macro functionality.

Scandisk is a system tool used to check the integrity of hard drives and fix errors found.

Drive space (or Disk Cleanup) is a utility that helps users free up disk space by deleting unnecessary files like temporary files and system caches.

Disk defragmenter is a tool that reorganizes fragmented data on hard drives to improve system performance by reducing the time it takes to read and write files.

In summary, while Scandisk, Drive space, and Disk defragmenter are system tools aimed at maintaining disk health and optimizing performance, Doskey is primarily a command-line utility for command history and macro management, making Option D the correct answer.