This article explains the various cleaning rules included in CCleaner Network for cleaning your endpoints.
- Cleaning Rules - Windows
- Cleaning Rules - Applications
- Cleaning Rules - Users
Cleaning Rules - Windows:
These settings appear on the Windows tab of the CCleaner section of the Management Console.
- Internet Explorer
- Cookies - For a further discussion of cookies, please see the Choosing which cookies to keep topic.
- History - Internet Explorer stores pages you've visited and the time and date you visited them.
- Recently Typed URLs - Internet Explorer saves your recently-typed URLs so it can suggest them as you type new URLs with the same starting letters. This rule removes them.
- Index.dat files - These files function as an index for the browser, and store temporary information about URLs, search queries, and recently stored files to speed up browser operation.
- Last Download Location - Internet Explorer remembers where you downloaded the last file.
- Autocomplete Form History - Once you've used Internet Explorer for a while, you'll notice that as you start typing letters into a text box on a form, it will present you with suggestions. Note: Using this cleaning rule will also deleted your saved passwords.
- Saved Passwords - Internet Explorer stores passwords for pages you've visited.
- Cached Feeds - Web feed is a data format used for providing users with frequently updated content. If deleted, it will be redownloaded upon next Browser restart
- Add-ons Statistics – Internet Explorer stores all internal statistics about add-ons, which were installed on IE.
- Recent Documents - This option clears the list Windows Explorer maintains of your most recently-opened files (see, for example, the My Recent Documents item on the Start menu or the ‘Recent files’ list in the Windows File Explorer, depending on your version of Windows).
- Run (in Start Menu) - This option clears the list that the Windows Run dialog box maintains of programs you've run from it.
- Other Explorer MRUs - Windows Explorer also maintains Most Recently Used (MRU) lists for the following types of information: Find Files, Find Computer, printer ports, and streaming data. If you select this check box, CCleaner will also clean the breadcrumb records used by Windows (breadcrumbs appear in the Explorer path box and display the path you took to get to a folder). You can find out more about MRUs here.
- Thumbnail Cache - This option clears the Windows Explorer image thumbnail cache, which is maintained to speed up the browsing of folders containing photos and images. But, this cache can also contain the thumbnails of images that are no longer on the system and are thus no longer relevant.
- Taskbar Jump Lists – When CCleaner is minimized to the taskbar, clicking the right mouse button on its icon will show you Jump List Tasks of CCleaner. The same is true of other programs, and this will help you clean data associated with these Jump Lists. More information can be found here.
- Network Passwords - When you connect to a wireless network using Windows Explorer, you can choose to save the network password. Selecting this option will erase these saved passwords, which will leave you unable to connect to these wireless networks again until the password has been entered again.
- Empty Recycle Bin - If you select this check box, CCleaner will empty your Recycle Bin. It is possible for this Rule not to be able to remove the files in the Recycle Bin. For more information and advice, please look here.
- Temporary Files - CCleaner will delete the Windows temporary files which are not in use. By default it only removes files that have not been accessed in 48 hours, as deleting newer files can reduce the performance of the computer.
- Clipboard - CCleaner will clear the contents of the Windows Clipboard.
- Memory Dumps - When Windows crashes, it stores small memory dumps so that technical users can debug their systems. CCleaner will delete these files. We would not recommend doing so if your computer is still having problems, as this can prevent effective troubleshooting.
- Chkdsk File Fragments - These are clusters and chains that are left over after you run CHKDSK. CCleaner will delete them.
- Windows Log Files - Windows logs many events and activities, such as access, policy changes, Internet use, tasks, and so on. As a result, the dozens of logs it creates are scattered across the system. They will all be deleted by CCleaner. Much like with Memory Dumps, we do not recommend deleting these if the computer is having problems, as this may prevent effective troubleshooting.
- Windows Error Reporting - Whenever a program crashes, Windows saves details of the crash to report back to Microsoft. This option will clean all the error reports from your system. Much like with Memory Dumps, we do not recommend deleting these if the computer is having problems, as this may prevent effective troubleshooting.
- Note: We do not recommend using the following items on a regular basis and they are, instead, included for troubleshooting purposes.
- DNS Cache - When you visit a Web site, Windows attempts to speed up future visits to that site by writing its DNS information to the DNS cache. This option will clear out the cache so that Windows can start storing DNS information from scratch.
- Font Cache - Windows caches commonly-used fonts to optimize performance. This option will clear the cache so that Windows will rebuild it.
- Start Menu Shortcuts - This option will delete Start Menu shortcuts that are invalid (they point to files that no longer exist).
- Desktop Shortcuts - This option will delete desktop shortcuts that are invalid (they point to files that no longer exist).
- Windows Event Logs - This will clear the entries in your Windows Event Viewer, which can often be used to diagnose problems occurring with your computer, but can typically be deleted if the computer is working properly.
- Old Prefetch Data - To run quickly, Windows uses prefetch files to store information about programs that you frequently use. The Cleaner can delete the prefetch data, which could clear up space if a lot of programs that no longer exist or haven't been used in a long time are cached.
- Menu Order Cache - When you drag and drop items on the Start menu into different locations, Windows stores this information in the Menu Order Cache.
- Tray Notifications Cache - This cache stores information about any items that have ever appeared in your System Tray, and whether or not you have set them to Hide, Hide When Inactive, or Always Show.
- Window Size/Location Cache - When you open and close Windows Explorer, Windows records folder settings for window position, sort order, columns, folder type, toolbar toggles, and search result views.
- Environment Path - This Cleaning Rule will clear the “PATH” User Variable in your system Environment Variables back to its default. More information is available here.
- User Assist History - User Assist History is a built-in monitoring feature of Windows that records when you access programs, shortcuts, Control Panel applets, and possibly even Web sites.
- IIS Log Files - Microsoft's IIS server keeps logs of its activities on your system. You can find out more about the IIS server here.
- Custom Files and Folders - This setting relates to CCleaner rather than any part of Windows. If you select Custom Files and Folders, CCleaner will use the information in the Include Rules to add folders, and Registry keys while cleaning.
- Wipe Free Space - When you delete files from your hard drive, Windows only deletes the reference to the files, not the files themselves. Over time, the contents of the files will be overwritten as Windows writes new files, but it's possible to recover some or all parts of deleted files.
- You can prevent this by using the Wipe Free Space option. For more information, see this topic.
- Note: This will perform a one-pass Wipe Free Space operation; to utilize a higher number of passes, please use the Drive Wiper tool.
- Old Windows Installation - When performing an installation of a new version of Windows, or a major system update (such as a Service Pack) on an endpoint, there is often the option to save a backup of the old operating system to be reverted to in case of problems. Performing a cleaning with this option enabled will remove this backup, saving a considerable amount of disk space but preventing you from reverting to that old version.
- Internet Cache – HTML, images, and other files accumulated while you surfed the Web while Microsoft Edge.
- Internet History – A list of the sites you visited and the dates on which you visited them
- Cookies – Web cookies stored by Microsoft Edge. Note that the Cookies to Keep list in the Options section of CCleaner controls cookies for all browsers you have installed, not just Microsoft Edge. Sites not on the Cookies to Keep list will have their login cookies removed along with other saved cookies.
- Download History – A list of files you downloaded through Microsoft Edge.
- Last Download Location – Microsoft Edge remembers where on your computer you downloaded the last file.
- Session – You can save the session and reopen it at the later time. Your Session contains all saved and opened tabs, so cleaning it will remove these tabs.
- Set Aside Tabs – You can also put tabs into a list to examine at a later time in Microsoft Edge, and cleaning this list will empty it so that these pages can’t be retrieved later.
- Recently Typed URLs – Microsoft Edge saves your recently-typed URLs so it can suggest them as you type new URLs with the same starting letters. This rule removes them.
- Saved Form Information – Usernames, passwords, search terms, and anything else you typed into any forms that appeared in the browser's HTML canvas.
- Saved Passwords – Microsoft Edge stores passwords for pages you've visited.
Cleaning Rules - Applications:
The sections and items that show up in CCleaner's Applications tab depend on which applications are installed on the selected endpoints.
- Cookies - Web cookies stored by each browser. Note that the cookie list in the Options section of CCleaner controls cookies for all browsers you have installed, not just Internet Explorer.
- Download History - A list of files you downloaded through that browser.
- Session – You can save the session and reopen it at the later time. Session contains all saved and opened 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 - User names, passwords, search terms, and anything else you typed into any forms that appeared in the browser's HTML canvas.
- Saved Passwords - Web browsers can store passwords for pages you've visited.
- 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. If you select Compact Database, CCleaner will defragment and trim unused space from these databases.
Other applications and utilities
- Applications - These refer to third-party applications you've installed that don't fall under the Internet, Multimedia, or Utilities category. Some examples are 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.
- Multimedia - These programs are video players and editors, or video helper programs for Web browsers.
- Utilities - These include utilities such as Zip management, disk tools, and spyware scanners.
- Windows - Some of Windows' own applications contain lists of recently-used documents. Examples are Paint and Wordpad.
- Windows Store: As the name suggests, entries in this section are for supported programs downloaded from the Windows Store
Cleaning Rules - Users:
You can specify which user profiles you want CCleaner to clean per endpoint (the default is to clean all users).
- In the Network Tree, select the Endpoint.
- In the right pane, select the CCleaner tab, then select the Users tab.
- Select Specific users.
- Select or clear items in the list of users.
- To save these selections, select Save Cleaner Rules.
Note: When selecting a Group, this tab will be available, but specific users may not be selected.