WinSxS ↔ huge backup copy for old version of dll/exe & other system files for compat. "Windows Side By Side" to fix DLL Hell by wasting disk space. NTFS Hard Link - Explorer overestimate size slightly
Sources: www.thewindowsclub.com/winsxs learn.microsoft.com/en
aka Windows-Component-Store
“Side-by-side assemblies are used by the operating system as fundamental units of naming, binding, versioning, deployment, and configuration. The Winsxs folder includes all manifests, optional components, and 3rd party Win32 files”. MS
cleanmgr.exe
Disk Space Cleanup Manager. connects to ms server for what??
DLL Hell
Dependency Hell for WinOS DLL compat
NTFS Hard Link
file system object shortcut to refer disk location
Sources: learn.microsoft.com/en learn.microsoft.com/en