The correct answer is: B. Install operating system
A low-level format prepares a hard drive for use by erasing all data on the drive and creating a new file system. After a low-level format, the next step is to install an operating system. The operating system is the software that controls the computer’s hardware and allows users to run programs.
Option A is incorrect because formatting a DOS partition is not necessary after a low-level format. The low-level format already prepares the drive for use by creating a new file system.
Option C is incorrect because configuring DMA channel and back-up interrupt is not necessary after a low-level format. The low-level format already prepares the drive for use by configuring the drive’s hardware.
Option D is incorrect because partitioning a hard disk is not necessary after a low-level format. The low-level format already prepares the drive for use by creating a new file system.
Option E is incorrect because it is not a valid step in configuring a hard drive after a low-level format.