Cleaning it will reset system tray cache, you need to restart the 'explorer.exe' process. Tray Notifications Cache: store the information about any items that have ever appeared in your System Tray, and any visible settings about tray icons. Cleaning these will reset the Start menu and Quick access order, but no any item will be removed. Menu Order Caches: store the information about dragging and dropping menu items in Start menu and Quick access category into different locations. Old Prefetch Data: stored the program data for quick start, this function is designed to clean the old prefetch data that have no any access within 30 days. Usually we don't need to install Windows Update patches again, so we can remove these files and get a lot of disk space. Windows Updates: stored the installation files after you downloaded the Hotfix from Microsoft. ico files for Windows File Explorer, they may contain outdated ico files.ĭNS Cache: check it to clean up system DNS cache.Ĭlipboard: check it to clean up system Clipboard. Icon Cache Files: the icon cache files are used to store the viewed. Thumbnail Cache Files: the thumbnail cache files are used to store thumbnail images for Windows File Explorer's thumbnail view, they may contain outdated thumbnails. You can open system 'Event Viewer' to see more details.ĬHKDSK File Fragments: stored the clusters and chains that are left over after you ran Windows 'CHKDSK' tool. Windows Event Logs: the event logs of System, Security and Application. Windows Error Reports: the error reports are generated by Windows Error Reporting (WER), capture software crash data and help users provide crash information when reporting errors.Ġ.5 Still Left Useless Folders After Cleanedĭownloaded Files: the ActiveX controls and Java applets that automatically downloaded from the Internet when you view certain pages. Memory Dump Files: stored the memory dumps when Windows or other programs crash, in order to let the advanced users debug the system, but most people can delete them to free up space. Recycle Bin: the resources that have been moved to the Recycle Bin. Invalid Shortcuts: find out the invalid shortcuts under Desktop, Start Menu, Quick Launch, Pinned Programs and Recent locations for current user and all users. As a result, the dozens of logs it creates are scattered across the system. Windows Log Files: Windows logs many events and activities, such as access, policy changes, Internet use, tasks, etc. User Temporary Files: the temporary files of current user (you), generally, cleaning these files can free a lot of disk space. System Temporary Files: Windows system temporary files, generally, cleaning these files can free a lot of disk space. Show Statistics (Size, Number of Resources and Time Spent) after Scanning/CleaningĠ.8 No Time Spent, But It's Not as Important as Size and Number of ResourcesĠ.8 No Total Number of Resources, But It's Not as Important as Sizeĭisplay Properties Box of Selected Resource Show Detailed Progress (Location) while ScanningĠ.5 Only Cleaning Point, No Specific Location Show Overall Progress in Percentage while Scanning Empty Recycle Binĭo (Un)checking All / Recommending for Features and Result ListsĠ.25 No (Un)checking All for Feature List, No Recommending for Result List
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