Sadeaner is a good tool for cleaning up the PC
Simple Windows cleanup utility
Tasks is an application that optimizes computer performance
A free and open-source program to free up disk space
SC is a easy to use space clearer to free up space on your pc
Bangladeshi pc cleaning software
Open source PC cleaner
A lightweight application that cleans and boosts PC performance
SG4 UsePack Optimizer is Portable compact solution for better use PC
Boost your Windows 7 with only few clicks !
Inoculates your system with a dose of high performance!
This app deletes the copies that most torrent clients keep in your pc.