Cleanup software packages mainly fit into a few key categories. The most popular seem to be general cleanup tools like Microsoft's Disk Cleanup utility, that are used to clean up your harddisk of redundant files and give back usable space in the process. Also you can find other software products that clean out URL history and get rid of the previously typed URLs from drop down lists in Internet Explorer, software such as Privacy Eraser. Another category is the 'porn eraser', that can pick up on the existence of porn or other suspicious items and allows deletion of any files that are not wanted. The last category of programs is the data erasing program which rubs out existing files and data from any part of the hard drive, so it cannot be misused.

Googling for cleanup tools reveals a broad set of softwares all of which come at the matter of hard disk cleanup in their own style. Several different disk cleanup apps available online can simplify the cleanup process immensely. Also remember that there is much more that these software tools can do, some have other functions, ie. they can delete private data, scan and remove inappropriate material, discover and clean copyrighted material, and show where your disk space is being taken up.