This review of CCleaner, by Piriform, was created to help you determine if it is the right PC cleaner for your needs. Your home trash may go to a landfill far away, but CCleaner will permanently erase junk files without impacting your Windows environment. What you can do is download a PC cleaner like CCleaner to remove the unneeded garbage just as you might take a bag of trash from your home and drop it in a dumpster. You can't stop using the internet or limit your computer usage to prevent the accumulation of junk, repetitive files, and other debris. Everything you do on your PC has the potential to create junk files, compromise your registry, and slow the speed of your processor. CCleaner is a Windows cleaner designed to eliminate unneeded and duplicate files, update outdated software, and keep your system running fast.