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{{Software
|name={{PAGENAME}}
|logo=
|image=
|caption=
|class=Utility
|type=
|creator=
|developer=Piriform
|released=September 23, 2003, {{age|2003|09|23}} years ago
|version=
|development=Active
|languages=English, Spanish, German, French, Arabic, Argentinean, Catalan, Chinese Simp, Chinese Trad, Czech, Danish, Dutch, Euskera, Finnish, Gallego, Greek, Hindi, Italian, Japanese, Korean, Norwegian, Polish, Portuguese (BR), Russian, Swedish & Turkish<ref>https://ccleaner.en.softonic.com</ref>
|engine=
|license=Freemium
|website=http://www.piriform.com/ccleaner
|OS=[[Windows]], [[Mac OS X]], or [[Android (operating system)|Android]]<ref>http://www.piriform.com/docs/ccleaner/introducing-ccleaner/system-requirements</ref>
|ram=
|cpu=
|storage=
}}
'''CCleaner''' is a piece of software intended to clean and optimize [[computer]] [[Operating system|systems]]. It attempts to clean unneeded files and registry keys, and delete private information which could be stolen and exploited. It also allows for white-listing certain [[Internet cookie|cookies]] and other traces, so that those specific ones will never be removed.<ref>http://www.pcworld.com/article/231606/ccleaner.html</ref> With over two billion downloads, CCleaner has become very popular.<ref>http://filehippo.com/download_ccleaner</ref>

==Advantages==
*Frees up drive space
*Deletes unneeded private data (protecting it from spyware)
*Improves system performance
*Does not charge a fee for most functions

==Disadvantages==
===Privacy===
Malicious software sometimes will search a victim's computer, looking for private information. By deleting much of the unneeded private information on a user's computer, CCleaner helps protect the user's privacy from attackers and spyware.<br />
However, CCleaner itself collects some information which users may not ordinarily be comfortable with sharing. They reserve the right in their privacy policy to collect the following:<ref name="piri PP">http://www.piriform.com/about/privacy-policy</ref>
*Device type
*Operating system type
*Device settings
*Application IDs
*Unique device IDs
*Other (non-Piriform)software used
*What features of Piriform's software are used
*Software crash data
*Other data collected by Google Analytics
This data collection is justified in their privacy policy as something other software companies do as well.<ref name="piri PP">http://www.piriform.com/about/privacy-policy</ref>

===Other===
*When installed, CCleaner often tries to push sponsored software onto the computer system as well. This is often [[bloatware]], with little use.
*There are few options to customize and configure the software. It must be used very much as it is out-of-the-box.

==References==
{{reflist}}

==External links==
*[https://www.piriform.com/CCLEANER CCleaner home]

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