Scroll further down the Applications tab to reveal the labels Applications, Internet, Multimedia, Utilities, and Windows. 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. If CCleaner can clean many files from a particular application, it normally has its own section in the Applications tab. This depends on what applications you have installed on your Windows PC. The apps and files displayed in the Applications tab: You can see some in the screenshot below as checkboxes you can select beneath the Applications tab for particular web browsers. These are the specific files and data that you allow CCleaner to delete from your system. What is Custom Clean?Ĭustom 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). You can see this more clearly in the screenshot below. We refer to these as tabs because they look like the tabs used in popular web browsers.

Each option has a series of checkboxes displayed underneath it. If you open CCleaner and click the Custom Clean icon, this should reveal two options for Windows and Applications. 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. 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.

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