How to Reduce the Size of Your WinSXS Folder on Windows 7, 8, 10, and 11 Share March 8, 2022 Dm4r Technology The WinSXS folder at C:WindowsWinSXS is massive and continues to grow the longer you have Windows installed. This folder builds up unnecessary files over time, including old versions of system components. Read This Article on How-To Geek › Source : How to Reduce the Size of Your WinSXS Folder on Windows 7, 8, 10, and 11