CCleaner is an easy-to-use, safe, well-known drive cleaner with other additional features including a conservative registry cleaner, startup manager and more. Video tutorial available.
CCleaner uses the same, familiar three tab interface it always has with the first tab showing you the main choices including Cleaner, Registry, Tools, and Options. The second tab lets you choose any settings before you run it. The third tab shows you what is happening and what was done.
The drive cleaner and registry cleaner are both conservative. There are drive cleaners out there that can clear more space if needed, but they aren\\\'t as safe as CCleaner. While we don\\\'t recommend you clean your registry, again, CCleaner is very conservative, and I\\\'ve never had an issue after thousands of uses.
Under Tools, you can find many other tools if you want to clean and speed up your PC more. There\\\'s an uninstaller, startup manager, browser plugin manager, system restore and drive wiper. It also has a disk analyzer to see where space is being wasted as well as a duplicate file finder.
Finally, there are many more options allowing you to whitelist cookies, include or exclude files or folders, monitoring, and more.
The Portable version disappears on every release from the builds page for about a week. Then, when it reappears, the links can change. To check for yourself, you can download it at http://www.piriform.com/ccleaner/download/portable/downloadfile or http://www.piriform.com/ccleaner/download/portable.
Version History for CCleaner Portable: http://www.piriform.com/ccleaner/version-history