Has a(another) Norton or McAfee application ever been installed on this
machine (e.g., a free-trial version that came preinstalled when you bought
it)?
Error message when you try to install Windows Vista Service Pack 2 or
Windows Server 2008 Service Pack 2: "An internal error occurred while
installing the service pack":
http://support.microsoft.com/kb/967818
Free unlimited installation and compatibility support is available for
Windows Vista, but only for Service Pack 2 (SP2). This support for Windows
Vista Service Pack 2 (SP2) is valid until November 26, 2009. Availability of
chat or e-mail support differs depending on your geographic location. Go to
http://support.microsoft.com/oas/default.aspx?prid=13014&gprid=582034 &
select appropriate category (i.e., Download issue; Installation issue;
Issues after you install a service pack).
--
~Robear Dyer (PA Bear)
MS MVP-IE, Mail, Security, Windows Client - since 2002
www.banthecheck.com