No need to put serials and cracks to get the full version, (already done it for you).
No unnecessary registry changes. 
No boring installation of tool-bars in your browser or other unwanted things.
You can even run this torrent from USB-Stick.
Easy Uninstall with the Windows control panel.
These are a few things that makes a '1-click run' version a, better version.

CCleaner is the number-one tool for cleaning your Windows PC. It protects your privacy online and makes your computer faster and more secure. CCleaner is easy to use and a small, fast download and user interface has the modern look. CCleaner is a freeware system optimization and privacy tool. Removes unused files from your system ?Çô allowing Windows to run faster and freeing up valuable hard disk space. It also cleans traces of your online activities such as your Internet history. CCleaner can run from a USB thumbdrive and be installed/run on a computer without a complicated setup process. It is possible to specify files, folders and registry keys to ignore from the cleaning process. But the best part is that it?ÇÖs fast (normally taking less than a second to run) and contains NO Spyware or Adware!

Cleans the following:

?Çó Internet Explorer. Temporary files, history, cookies, super cookies, Autocomplete form history, index.dat files.
?Çó Firefox. Temporary files, history, cookies, super cookies, download history, form history.
?Çó Google Chrome. Temporary files, history, cookies, super cookies, download history, form history.
?Çó Opera. Temporary files, history, cookies, super cookies, download history.
?Çó Apple Safari. Temporary files, history, cookies, super cookies, form history.
?Çó Other Supported Browsers. K-Meleon, Rockmelt, Flock, Google Chrome Canary, Chromium, SeaMonkey, Chrome Plus, SRWare Iron, Pale Moon, Phoenix, Netscape Navigator, Avant and Maxthon.
?Çó Windows. Recycle Bin, Recent Documents, Temporary files, Log files, Clipboard, DNS Cache, Error Reporting, Memory Dumps, Jump Lists.
?Çó Registry Cleaner. Advanced features to remove unused and old entries, including File Extensions, ActiveX Controls, ClassIDs, ProgIDs, Uninstallers, Shared DLLs, Fonts, Help Files, Application Paths, Icons, Invalid Shortcuts and more?Ǫ
?Çó Third-party applications. Removes temp files and recent file lists (MRUs) from many apps including Windows Media Player, eMule, Google Toolbar, Microsoft Office, Nero, Adobe Acrobat, WinRAR, WinAce, WinZip and many more?Ǫ

ChangeLog:

Changes in CCleaner 4.01.4093 (25 Apr 2013):

- Improved History cleaning for Google Chrome.
- Improved compatibility with Firefox v19 and newer.
- Optimized Registry cleaning algorithm for Windows 8.
- Improved Internet Explorer 10 compatibility.
- Improved Duplicate File Finder tool.
- Optimized System and Browser Monitoring (Pro Version).
- Added cleaning for Adobe Acrobat XI, VSO Blu-ray and DVD Converter Ultimate, Oxygen XML Editor 14 and Connectify Hotspot.
- Improved cleaning for Google Earth and MailWasher Pro.
- Minor GUI improvements.
- Minor bug fixes.

System Requirements:

Runs on Microsoft Windows 8, 7, Vista and XP. Including both 32-bit and 64-bit versions.

Homepage: http://www.piriform.com/