CCleaner 2.12.660 is the perfect free software for this job..
It Cleans:
…Advanced Registry scanner and cleaner to remove unused and old entries.
…Internet Explorer Cache, History, Cookies, Index.dat.
…Recycle Bin, Temporary files and Log files.
…Recently opened URLs and files.
…Third-party application temp files and recent file lists (MRUs).
Including: Firefox, Opera, Media Player, eMule, Kazaa, Google Toolbar, Netscape, Office XP, Nero, Adobe Acrobat, WinRAR, WinAce, WinZip and more…
Including File Extensions, ActiveX Controls, ClassIDs, ProgIDs, Uninstallers, Shared DLLs, Fonts, Help Files, Application Paths, Icons, Invalid Shortcuts and more… Backup for registry clean.
Windows Startup tool.

you may download it by clicking on the following link:
http://filehippo.com/download_ccleaner/download/425aff760c413d320f5a6371aebf43c5/

I would like you to know about my favorite Registry Cleaner which is "Eusing Free Registry Cleaner 1.8"..it is awesome..after installation it will ask about registration code..but without registration you could use it for 1000 years…it is clearly mention on the official website of this Software…that registration of this program mean donation…if you like to donate..you can if you don’t…don’t worry you are free to use our software(I found its work very amazing.).
you may download it by clicking on the following link:
http://www.eusing.com/Download/EFRCSetup.exe

Hope you will find my answer helpfull!
Wi$H yA GoOd LuCk