- Quick specs
- Price: Free
- Operating system: Windows Vista, Windows 95, Windows Me, Windows XP, Windows 2000, Windows NT, Windows 98
- Date added: June 25, 2009
- Total Downloads: 7,642,331
- Downloads last week: 46,768
- See full specifications
A newer version of CCleaner is available.
(Download doesn't provide access to previous versions of this program.)
- CNET editors' rating: stars
- Average user rating: stars out of 3415 votes
See all user reviews -

CNET editors' review
Reviewed by: CNET Staff on November 07, 2008
Although it lacks a few of the bells and whistles found in other PC-cleaning applications, this free program offers more than enough features to make it a worthy download. CCleaner's interface is logically designed and makes it easy to wipe away your tracks from Internet Explorer, Firefox, Opera, and Google Chrome from various Windows system areas, and from some third-party applications.
CCleaner doesn't support the large number of extraneous programs that some competitors do, but it can erase traces from such popular programs as Spybot - Search & Destroy and WinZip. CCleaner now offers secure file erasing along with a Registry-cleaning utility that quickly scans for invalid entries before removing them. CCleaner can even back up your Registry before removal, in case it accidentally removes a crucial component, and the download includes a rudimentary feature for uninstalling any program on your machine.
Since this free application handles the majority of PC-cleaning chores and offers a nice extra, we strongly recommend CCleaner to all users, except those who need robust tools to remove supersensitive data.
Publisher's description
From CCleaner :CCleaner is a freeware system optimization, privacy and cleaning tool. It removes unused files from your system - 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. Additionally it contains a fully featured registry cleaner.
Version 2.21.940 has added U3 smart drive support and also added Installed date and size to Uninstall Tool.
What's new in this version:
Version 2.21.940 has added U3 smart drive support and also added Installed date and size to Uninstall Tool.More popular Diagnostic Software downloads
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User reviews of CCleaner 2.21.940
- Average user rating: 4.4 stars out of 3415 votes
- My rating: 0 stars Write review
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Showing 5 of 30 user reviewsSee all 30 user reviews
This software version | All versions -
0 out of 2 people found this review helpful
Version: CCleaner 2.21.940
"Use with caution, check other related software products"
Pros: Removes cookies that other software leaves behind.
Cons: Will remove system restore points on some PCs......
Summary: I used this software almost every day, until a problem occured with my PC that meant I needed a system restore. To my horror there were no restore points on my PC. It took some investigation to find the culprit, it was Ccleaner! Don't take my word... read more >>
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1 out of 1 people found this review helpful
Version: CCleaner 2.21.940
"Does the job, if you know what your doing."
Pros: Effective registry cleaner, cleans alot of mess.
Cons: no cons, just that you have to know what you are doing. If you dont have a clue about how registry's work; stay off then!
Summary: Effective registry cleaner, cleans alot of mess.
All you just have to know, is what you are doing.
If you dont have a clue about how registry's work; stay off then! -
0 out of 4 people found this review helpful
Version: CCleaner 2.21.940
Pros: the software works ok or at least it seems to run ok
Cons: the cnet website has a trick; on the download page it has an advert of another download site that charges ?4.95 and ?49.95 per year as a recurring charge on your credit card
Summary: there are two websites: one is www.ccleaner.com which is free; and the other is www.intelinet-global.net where the charges have to be paid through the worldwide bill settlement handler ccbill.com
I request cnet.com to fix this ripping... read more >> -
Version: CCleaner 2.21.940
Pros: Its aggressive in its scans
Cons: tends to hog the start up time but you can disable it for customize use
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Version: CCleaner 2.21.940
"Rather seamless, generally effective clean-up."
Pros: Finds and resolves issues other software does not
Cons: Seems to have effected some other programs, but have managed to rectify resultant issues.
- See all 30 user reviews Write review
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