@leocg Thanks, but as I did said from (since) start, Microsoft now dont give support to users (as me) with Win7.
Don´t work Windows Update since 4 years ago, and in the windows pages don´t give more support as the download cerficates or the SP or updates (I did download in the past from the webpages, because I did´t have Internet service).
Thanks for the help, maybe I will post in other topic about where get the certificates to the browsers web.
This topic is solved. Thanks.