CCleaner Professional, Unlimited PCs; One Household

CCleaner Professional is the #1 tool for quick and easy optimization, keeping all of your Home PCs running clean, safe and fast. It cleans clutter from the hard drive, prevents crashes, and erases online tracks. With two clicks of your mouse, you get more hard drive space, privacy protection, and best of all, faster PCs. CCleaner Professional includes multi-user account cleaning, automatic updates, and priority technical support.