Also, firewalls and other security software that features whats called an " OS firewall" ( one that is an internal watchdog against program executions and other registry type operations ) can be stopping you cold during install, and preventing the FS installer from making any registry changes.
try to identify any security programs ( norton crap , etc ) and slay the processes for it before attempting patch. ( turn it off , uninstall , whatever you have to do to get it out of memory. )
Of course, reinstate you security measures once you have success.
"The victorious win the battle, then go out to fight ... while the defeated go out to fight, then try to win the battle. -SunTzu
"The only difference between a capitalist and a communist is that the communist hates competition!" -Circuit
