The internet is full of software packages that in each case, view the problem of
cleaning up a hard drive from varying perspectives. A typical example is 'Media Detective' style
software, which is designed to detect and clean porn from computers.
Several are for-profit software and some are open source. However
there are more things that these software tools can do, there are many that also
do free space cleaning, clean up porn files, detect pirated software, and help with
free space recovery.
We can discuss several hard disk cleaning possibilities; the first option is to select
files manually, second, you might use a software tool which will help reduce time
involved. Manual scanning means stepping through all directories within the drive
and then making a decision about which data files can go, and getting rid of them
in your own time. This is less risky than scanning the drive with software tools
but can be a burden. Utilities for cleaning hard drives that use information such
as the file accessed date, and internally build a table of files and folders that
are then used to clean up the drive with no user intervention.