Which tool can be run on a magnetic hard drive to attempt to speed up performance?

Disk cleaner

Disk defragmenter

Disk diagnostics

dxdiag

Disk Defragmenter

Explanation:

File fragmentation is peculiar to magnetic hard drive that has pieces of a file randomly distributed or scattered in different locations. It usually takes longer time to access and read this file thereby slowing down the hard drive performance and by extension the computer.

Hence, it is usually important to defragment the hard drive by using a program called disk defragmenter.

The disk defragmenter is a maintenance tool that assembles and organizes fragmented files into a solid block on the hard drive, which speed up it's overall performance.

Also, it is pre-installed on all Windows by default.