A desktop technician has received reports that a user's PC is slow to load programs and saved files. The technician investigates and discovers an older HDD with adequate free space. Which of the…

Disk Management is used for partitioning, formatting, and managing disk volumes; it does not directly address performance issues related to file fragmentation.

On an older Hard Disk Drive (HDD), files can become fragmented, meaning parts of a single file are scattered across different physical locations on the disk, which increases the read/write head's movement and slows down data access. Disk Defragmentation reorganizes these fragments to contiguous blocks, thereby improving access speed and alleviating slow loading times.

Disk Cleanup removes temporary files and system files to free up disk space, which is not the primary issue here since the drive has adequate free space, and it doesn't address file fragmentation.

Device Manager is used to manage hardware devices and drivers; it is not relevant for resolving slow performance caused by disk fragmentation on an HDD.