CCleaner is one of the most popular windows disk and registry cleaning utility. It scans the system for unwanted file and folders and removes it with a single…

Performance maintainer is an open source software which cleans registry, cleanup disk, defrag drive.

OnyX is a multifunction utility that you can use to verify the startup disk and the structure of its system files, to run miscellaneous maintenance.

PrivaZer automatically recognizes your storage device type and adapts its overwriting algorithms to the storage medium.