Since I have the whole thread no correct solution for the update of the Roots certificates and revoked certificates found, I hereby would like to offer a way to keep them up to date. For the security of Windows XP after the last condition no official patches more for blocking div. Roots certificates and certificate update available. For revoked Certificate Update "rvkroots.exe" Microsoft download (http://www.microsoft.com/download/details.aspx?id=41542), unzip to a folder (eg with WinRAR