I am trying to receive updates for Vista home addition 32 bit. The first error message i received from windows update was "800B0109". I tried to download the system update readiness tool for Vista KB947821 and that failed. the error message was "installer encountered an error 0x800b0109. a certificate chain processed, but terminated in a root certificate which is not by the trusted provider." I then tried microsoft fix it center and received a runtime error 80040402 and input string was not in the correct format.
What else should i be trying?