WinExt System Cleaner is a 100% FREE software. It can make your computer run faster and give you some extra disk space by secure cleaning up useless or invalid system resources. It includes dozens of cleaning sub-functions, such as deleting temporary files, log files, invalid shortcuts, etc. In addition, it supports to do (Un)checking all / recommending for features and result lists, open resource location, display Properties box of selected resource and export result to txt/csv/xls/xlsx file. At last, this system cleaner just is a sub product of WinExt, the second one have many other features, sure, contains system cleaner.