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What does the CCleaner.exe file do?

The CCleaner.exe process is also known as and is a part of CCleaner. This software is produced by Piriform (www.piriform.com) or, as the case may be, CCleaner.com. An obsolete or defective version of CCleaner.exe can cause problems for your computer that can range from slowness to error messages such as these:

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What you should know about CCleaner.exe CCleaner

CCleaner.exe is not part of Windows, but it is important nonetheless. CCleaner.exe is found in a subdirectory of "C:\Program Files". Frequently occurring are file sizes such as 5,489,944 bytes (6% of all these files), 5,282,584 bytes as well as 37 other variants.
It does not come from Microsoft and is not part of the operating system. The CCleaner file has a digital signature. This confirms that the producer has been registered with a certificate authority. The original file is digitally signed. Check your file. Windows starts the process each time that the computer boots up (Registry: Run). CCleaner.exe is capable of track other applications as well as interpret keystrokes. For this reason, 15% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.

A CCleaner.exe file has a 22% certainty of being dangerous if it is found in a subdirectory of C:\. In this case, the file size is usually 4,826,904 bytes. This CCleaner program does not have a visible window, and does not appear on the taskbar. The file possesses a digital signature from Verisign.com, which should confirm its trustworthiness. The CCleaner file has a digital signature. This confirms that the producer has been registered with a certificate authority. The CCleaner file was developed by a so-called third party provider - and not by Microsoft. CCleaner.exe is capable of interpret keystrokes as well as track other applications.

If you see this file on your hard drive or in Windows Task Manager, please make sure that it is not a malicious variant. It's a fact that many trojans try to cloak their true identity by calling themselves CCleaner.exe. With the above information or by using tools like Security Task Manager you can determine if, in your case, the file is an undesirable variant.

What do other computer users say about CCleaner?

Fantastic for removing CRAP off your PC.. I have used it for a year or so, its great.
Mike
A program used to clean your computer. A good program I might add. Search for it anywhere, you'll find it anywhere...
General Leo
FREE cleaner/ no ads/just a basic program.
AL
This is a Great program for removing garbage(Cookies) from your computer . It's Free, Small in size and Fast. Works better than other cleaning programs that I've used. (further information...)
Great program for removing junk off your system. It is also good at revealing installed programs you didn't know were installed as well as directories & files you didn't know existed. (further information...)
Vagrin

Summary: 9 users judge CCleaner.exe to be an essential file that should not be touched. However, one user considers this to be a suspicious process and would like to get rid of it. source: file.net

How to uninstall CCleaner

CCleaner.exe CCleaner fix

To remove CCleaner from your computer, please follow the manual instructions below or use an automatic uninstaller product.

  1. Click the Windows Start Button. In Windows 8, look for Control Panel.
  2. Click Control Panel.
  3. Click Uninstall a program.
  4. Look for CCleaner in the list of available programs.
  5. Click Uninstall.

How to tell if CCleaner.exe (CCleaner) was uninstalled cleanly

After uninstalling, restart your computer. Then start Windows Explorer and see if there is still a folder with the name of the software under C:\Program Files. Be sure to check the Registry as well for remnants of CCleaner. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for CCleaner or the name of the producer. Always keep in mind that only a computer professional should ever directly delete entries in the Windows Registry.

What to do if a program does not uninstall

The easiest way to remove any kind of software cleanly and accurately is to use an uninstaller tool. Because the uninstaller automatically creates a backup, there is no risk of anything going wrong.

Last but not least

If Windows not working quite right for you, or if startup is taking a long time, or CCleaner.exe is causing problems for you, a good Windows diagnostic tool may very well help. This is especially effective when it comes to older computers that have accumulated vast quantities of "garbage data" as the result of many software installs and uninstalls.

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