Applications tab for CCleaner for Windows

We cover what the Applications tab is and how it works, including what is displayed in this tab, how CCleaner categorizes different applications, and the specific files and apps you can clean. If you want to find out more about the Applications tab's specific cleaning rules, skip to Apps and files you can clean with the Applications tab further below.

What is the Applications tab?

If you open CCleaner and click the Custom Clean icon, this should reveal two options for Windows and Applications. Each option has a series of checkboxes displayed underneath it. We refer to these as tabs because they look like the tabs used in popular web browsers. You can see this more clearly in the screenshot below.

What is Custom Clean?

Custom Clean is a function within CCleaner that allows you to customize how the app cleans different parts of your PC, such as your operating system and applications (like web browsers).

What are 'cleaning rules'? 

These are the specific files and data that you allow CCleaner to delete from your system. You can see some in the screenshot below as checkboxes you can select beneath the Applications tab for particular web browsers.

CCleaner Professional, Custom Clean, Applications window

The apps and files displayed in the Applications tab:

This depends on what applications you have installed on your Windows PC.

How CCleaner categorizes different apps: 

If CCleaner can clean many files from a particular application, it normally has its own section in the Applications tab. You can see the three web browsers CCleaner Browser, Firefox, and Opera, in the screenshot above, and the different file cleaning options listed as checkboxes beneath each one. You can select any of these.

Scroll further down the Applications tab to reveal the labels Applications, Internet, Multimedia, Utilities, and Windows. If an application is listed under any of these categories with no further information, CCleaner cleans out document history (MRUs), visited URLs, and temporary files for the application. 

Apps and files you can clean with the Applications tab:

1. Web browsers:

For example, programs like Mozilla Firefox, Google Chrome, and Opera.

  • Cookies - Web cookies get stored by each browser. Note that the Cookies to Keep list in the Options section of CCleaner controls cookies for all browsers you have installed, not just Internet Explorer. Sites not on the Cookies to Keep list will have their login cookies removed and other saved cookies. For more information about cookies, please see choosing which cookies to keep.
  • Download History - A list of files you downloaded through that browser.
  • Session – You can save the session and reopen it at a later time. Your Session contains all saved and opened tabs, so cleaning it will remove these tabs.
  • Internet Cache - HTML, images, and other files accumulated while you surfed the web using that browser.
  • Internet History - A list of the sites you visited and the dates on which you visited them.
  • Saved Form Information - Usernames, passwords, search terms, and anything else you typed into any forms that appeared in the browser's HTML canvas.
  • Compact Databases - Some web browsers (notably Mozilla Firefox and Google Chrome) use databases to store bookmarks, history, and other data. When you remove information from these databases, they may still take up room with fragmented space on your hard drive. If you select Compact Database, CCleaner will defragment and trim unused space from these databases.
  • Website Icons – Some web browsers store website icons displayed on the address bar and in the favorites list; these are sometimes called ‘Favicons.’
  • Saved Passwords - Web browsers can store passwords for pages you've visited in a database with the browser itself. Cleaning these will not log you out of websites you’ve already logged into. This is saved by a cookie (a type of file that stores data). 

2. Other applications and utilities:

These are other areas of your Windows computer where CCleaner cleans, as well as more detail on selected cleaning rules. 

  • Windows Store: As the name suggests, entries in this section are for supported programs downloaded from the Windows Store.
    • Microsoft News - The new News app in Windows 11 creates cached data, including temporary browsing files and cookies, which we can now successfully remove.
  • Applications - These refer to third-party applications you've installed that don't fall under the Internet, Multimedia, or Utilities categories (within Custom Clean). Some examples of this include CD/DVD-burning programs and word-processing software.
  • Internet - These programs include browser add-ons such as Flash and the Google toolbar, instant messaging programs, and firewalls.
    • Microsoft Teams - The new collaboration, video conferencing, and chat tool “Teams” is now baked into Windows 11. However, it generates a lot of cached data, log files, and other temporary files that we’re now cleaning up.
    • Skype - Windows 11 includes a version of Skype, which we’re now officially cleaning up by removing cached data.
    • Microsoft Family Safety - We clean temporary files and folders from MS Family Safety with this rule.
  • Multimedia - These programs are video players and editors, or video helper programs for web browsers.
    • RealPlayer - We detect and remove junk from all versions of Real Player, including SP, 15, 16, and Cloud. We remove JPG and thumbnail files, cache files, outdated index files, and more.
  • Utilities - These include utilities such as Zip management, disk tools, and spyware scanners.
    • Windows Defender - Microsoft’s built-in Defender generates a lot of log files, most of which you are unlikely to find necessary (in most cases).
    • AnyDesk - We clear out junk files from this popular remote management tool AnyDesk: this includes old chatlogs, trace files, and cached png and icon files. These are not necessary, and you can delete them safely.
    • Norton Security Antivirus - We remove leftover Norton Installer files and other log data.
  • Windows - Some of Windows' own applications contain lists of recently-used documents. Some examples of this include Paint and Wordpad. We clean these files too.

Note: An asterisk (*) next to an application's name means that you (or a system administrator) have added it to CCleaner as a custom application.

Note: To view more details on what a specific Cleaning rule does, you may run the Cleaner software with the "/export" argument. Specifically, the rules in this section will be located in the “winapp.ini” file.


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