CCleaner

The freeware CCleaner hasn’t seen many major revisions since Piriform launched it in 2004, so when you do see a major update, you can be assured that it’s going to come with impressive new tools. CCleaner 3 doesn’t disappoint on that front, introducing two major new features that make it worth the upgrade.
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 keep cookies for specific sites that you know to be safe, such as webmail, while getting rid of the rest that you don’t want tracking you. Note that your browser must be closed for the cookie-deleting feature to work.
For users who are new to the program, in addition to browser tracks cleaning it will clean tracks from other programs, empty your recycle bin, delete temporary files, and clean your Registry, quickly scanning for invalid entries before removing them. CCleaner will also back up your Registry before you hit delete, in case it accidentally removes a crucial component. There’s also a basic, somewhat rudimentary uninstaller for removing any program on your machine. What Registry entries it doesn’t catch, the main Registry checker will, but it’s a two-step process that dedicated uninstallers handle nicely on their own.