Hey guys, I did some comparison over vmware with vLited 64bit Home Premium SP1 without natural Language and amongst other stuff I've deleted. From clean install, I only installed KB955020 to it and checked how much size it added to Winsxs folder. --------------------------------- Before KB955020 2.74 GB size 2.80 GB size on disk 31,876 files 7,434 folders --------------------------------- After KB955020 5.02 GB size 5.08 GB size on disk 32,540 files 7,442 folders --------------------------------- As a result this patch definately spoils the whole vlite effort in terms of saving spaces. I think this information is something to pass on to others who delete Natural Language but apply hotfixes automatically with windows update. Jaykay> Re-installing did kill the search engine like you've mention. However on a non-vlited vista, uninstalling KB955020 won't kill the search engine but also doesn't fully uninstall, leaving winsxs contents as is.