Specs are quantitative aspects of the option such as the price
Pros
Pro
All-in-one optimizer for PC
It cleans junk files, full featured registry cleaner, uninstalls software, and can control startup processes. It does a thorough job in clearing up disk space from all the junk files on your system that are collected over time.
A common drawback for freeware of this quality is when they are bundled with crap-ware. This only includes Google Chrome and can be easily opted-out of.
CCleaner does not clean up leftover files after an application's uninstaller has been run, nor can it handle uninstalling applications that do not have an uninstaller.