Windows and nearly all other software that is installed on it produce temporary data. These disk space consuming files are used to remember personal data or user behaviour in the best case, but most of the time they only decrease the speed of your system the more is installed on it. Unfortunately there are not many programs that really take care about consequences of saving temporary files to different places, with different extensions or without always deleting when possible or necessary. Hard Drive Washer does what all these programs forget. It searches for these unnecessary files and offers you to delete them. Besides conventional temporary files that normally are saved with a .tmp extension, there are more files that are not really required to keep your system running. Especially backup files that end on a .bak extension, .log files or files that were renamed to .old for security reasons months ago and much more can be found and deleted easily with this program. Additionally,...