Think it over. You will soon agree with my opinions on why periodically purging unwanted files, including adult or inappropriate material and other files and material from your hard drives is a great idea. Retrieval speed for documents and other files, specifically when accessing hard disk files can vary depending on the total number of all files found in the file system. This might seem odd, but it makes sense when you realize that when the drives contain more files, and the file allocation tables (a table of contents for files) get larger, the HDD works harder as files are requested by the user. And whenever we delete or save a file, file fragments get scattered around the hard drive over time and this negatively affects data read rates. Additionally keeping private files private is more difficult, the more files you have that you would rather keep secret, the higher the likelihood is that any other computer user of your PC might be able to get their hands on this data. And purging any private or undesirable files will make resources available again which can then be put to other uses.