Performance gains can be achieved by cleaning up your computer. Any computer is potentially able to perform better the less files there are to be handled and organized inside the hard disk. Whether small or large, any free space restored as a result of the cleanup procedure can be returned to the available pool of free space. And the act of defragmenting the drive is vastly improved when the hard drive is not cluttered with many useless files. And with your private data out of reach it is then unlikely that the sensitive data could be stolen by just anybody.

The world wide web reveals the depth of applications of many kinds that will handle the HDD analysis & cleaning process in ways that are different for each product. One common class of application is the computer cleaner, several are for-profit software and some are open source. But this is not all that these utilities are able to do, many can also do free space cleaning, perform automated porn removal, find unlicensed software installed on the computer, and show the distribution of data on your HDD.