
One is a drive wiping tool that can wipe all the data from your hard drive, but can also scrub only the available free space. As with many of the tools in CCleaner, it's fairly nuanced and allows for a simple one-pass overwrite, a Department of Defense-level three-pass option, a National Security Administration-level seven-pass cleaning, and a 35-pass Gutmann-level deep scrub. The more passes you select, the slower the deletion process.Another key improvement to CCleaner 3 has been adding more options to pre-existing features. You can now select specific Internet cookies to keep, across all your browsers, while CCleaner deletes the rest in Internet Explorer, Firefox, Chrome, Opera, and Safari. The benefit of this is to