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 behavior 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 of the consequences of saving temporary files to different places, with different extensions, or without always deleting when possible or necessary. 1-abc.net 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, more files 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 can be found and deleted easily with this program. Additionally, 1-abc.net Hard Drive Washer can delete the whole content of temporary folders and allows the user to configure what files should be looked for. Of course, it is also possible to edit the exceptions list for files that should not be deleted under any circumstances because not all software developers take care of what temporary files are normally meant for. To keep it absolutely secure, all unnecessary data can be deleted to the Recycle Bin to enable undoing these changes.