You will need to pick one of two ways to do a hard drive clean; the first option is to select files manually, if that doesnt appeal, there are always software tools to help. The manual method involves stepping through all folders and then making a decision about which parts of the drive are no longer required, and getting rid of them in a per-case manner. The manual method is more thorough than techniques involving automated software tools but this way can be tedious if many files exist. There are also automated programs that can determine information which include file properties, last opened dates, etc. and use this information to build a table of files and folders to be cleaned.

Googling for cleanup tools reveals a broad set of softwares each of which approaches drive scanning and cleanup processing in varied ways. A popular example of the types of files cleaned is the simpsons porn file remover, some are commercial products and others are free. However there are more things these applications can perform; a few of them are also able to do clean up orphaned data, check the drive for porn and remove it, detect pirated software, and analyzed used and free space.