I am also experiencing the same issue. I have all my anti-virus software disabled, Windows firewall disabled, and still it just hangs and eventually comes back with the same errors shown above. it is the installer
This has lost me 2 days so far of work as I am supposed to be evaluating your flash tools!
Please can somebody look at this issue, it seems to be very common. If so many people are having to disable firewalls & anti-virus software I would suggest adobe needs to find a better installation solution. Or at least have full product direct downloads!
Marc