X64 Windows 10 - Sxsi

SxS stands for Side-by-Side . It is a Microsoft Windows technology that allows multiple versions of the same DLL (Dynamic Link Library) or application to run simultaneously without conflict.

App A needs msvcrt.dll version 7.0, App B needs version 8.0. SxS lets both run on the same PC. 2. Where Is the SxS Folder on Windows 10 x64? On a 64-bit Windows 10 system, the main SxS storage is: Sxsi X64 Windows 10

Instead of overwriting a shared system file when installing new software, Windows keeps older versions alongside newer ones. Each application “asks” for the specific version it was built with. SxS stands for Side-by-Side

DISM /Online /Cleanup-Image /StartComponentCleanup For even more aggressive cleanup (recent Windows 10 versions): Sxsi X64 Windows 10