CCleaner:
If you want to Optimization and cleaning your pc ,I expressed you that
this application is the vest for your pc .This is Number 1 tool for cleaning Windows pc.

The Video Overview Of  CCleaner Pro

you can protect your pc by this and makes your computer faster.
look the below ,this is the interface of CCleaner.

CCleaner Pro Full Version For Free

there have 4 feature
*CCleaner:you can clean by this option Unnecessary Dirty file.such as Temporary Internet Files.
History of browser,Cookies,Recently typed URLS,index.dat files,last Download Location.and also you can doing
Cleane of Recent Documents,Run(in start Menu),search Autocomplete,Other Explorer MRUs ,Thumbnail Cache,Taskbar Jump Lists ,
and also cleans System Unnecessary Dirty file:such as Empty Recycle Bin .Temporary files,clipboard ,Memory Dumps,Chkdsk File Fragments.
*Registry:you can doing by this Registry CCleaner :
+ Missing Shared Dlls,
+ Unused File Extensions,
+ ActiveX and Class Issues,
+ Applications,
+ Fonts,
+ Application Paths,etc.

*Tools:There habe 4 Feature.you can by this, Uninstal any Program from your Computer and also you can Startup, System Restore and Drive Wiper.
*Options:there habe settings,Cookies,Include,Exclude,Advance option.There Basic setings to control how cCleaner functions.
why we use it:
This is Very quick.
It is Simple to use.
It’s habe Features a handy uninstall program utility.
And also habe,Great for uninstalling programs and startup items.
It Can Drive Wipe clear a hard drive.

CCleaner Pro Full Version For Free