Software Update: CCleaner 5.79

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Piriform has released version 5.79 of CCleaner, the latest version with support for Windows Vista and XP. This program can be used to clean various parts of Windows. This includes temporary Windows and Internet files, but also unnecessary junk from a large number of other programs, including Windows Media Player, Google Toolbar, Microsoft Office, Photoshop, WinRAR and so on. In addition, the number of programs that CCleaner can clean up can easily be expanded with the CCEnhancer program.

In addition to cleaning, CCleaner can also fix errors in the registry and shortcuts, modify the list of programs that start with Windows, and it is possible to manage cookies. From this version, the general condition of the computer can also be tested. In addition to a free version, there is also a pro version, which includes an automatic update function. The release notes for this release are as follows:

Wipe Free Space option re-enabled in this version

We’re committed to providing the safest PC cleaner on the market. We recently disabled Wipe Free Space while we investigated reports of this feature wiping more than free space. After testing this feature thoroughly, we weren’t able to reproduce the behavior described or find any faults in this feature, so we are re-enabling it with some diagnostics reporting to catch any situations like those described.

Protecting our customers

We want everyone to enjoy using the latest and safest version of CCleaner, including people who may not have updated in some time. We are continuing to bring customers on very old versions up to date so they can clean their machines safely. †Find out more


  • Added new cleaning of Slack cache (this optional setting does not wipe message history)
  • We have re-enabled the ‘Wipe Free Space’ feature with new diagnostics information to catch a bug that was reported but not reproduced in our thorough testing
  • We have added optional debug logging to try to catch a rare ‘rule duplication’ bug


  • We fixed some instances where the app was using HTTP instead of HTTPS

Version number 5.79.8704
Release status Final
Operating systems Windows 7, Windows 8, Windows 10
Website Piriform Ltd.
License type Freeware/Paid
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