Free Space Wipe is a simple, stripped-down free space wiper that provides a fast option to prevent disk tools from undeleting files and disk imaging tools from copying old files or file fragments.
CCleaner is an easy-to-use, safe, well-known drive cleaner with other additional features including a conservative registry cleaner, startup manager, and more. Video tutorial available. CCEnhancer can extend the cleaning capabilities of CCleaner.
iBoostUp is designed to enhance your machine's performance by pinpointing and removing unnecessary files that can accumulate over time, freeing up valuable disk space. This optimization process also involves freeing up memory, which can lead to a noticeable increase in your machine's speed and responsiveness.
HDCleaner is a freeware app to completely clean your Windows PC, including registry and backup, encrypting data, splitting files, removing traces, etc.
Privacy Eraser is not just a drive cleaner but also an all-in-one privacy suite that protects your privacy and optimizes your computer so it runs faster. Video tutorial available.
Dup Scout is a free duplicate file finder that allows you to search for and clean up duplicate files on local disks, network shares, NAS storage devices, and enterprise storage systems.