Vista - Help Pc Won't Boot After Windows Update

Hi i've recently updated my pc & since then i turn it on
the fan starts, then i get the black page which i'll quote what it says:

I've tried pressing DEL, F11, F12, F8 but to no avail
i've tried resetting the cmos but same as above,
also tried vista recovery CD but nothing and wont boot,
it just stays on the same screen, with the red light constant on the front of my pc?
i've tried explaining the best i can anyone have any ideas?

Windows Vista Ultimate 64

Stev

Put a vista dvd in the tray and press setup. at some point it will give you an option to repair, restore or boot normally

Do you have a backup you can restore from?

Ken

i've tried that mate i put the disc in and nothing happens, the disc tray
lights up but shortly dissapears without booting or giving me any other
options like the screens frozen?

I don't think you're getting past the post, which has nothing to do with the operating system. Did you flash the bios?

Replug in your keyboard.

For further diagnostics...

remove all PCI cards except video
remove hard drive and dvd connections

see if you can get to bios.

if that doesn't work, pull memory

does it "beep" at all? if so how many times?

i think my gf interrupted the update & im using a usb wireless keyboard
but have tried other keyboards, i haven't tried re-flashing the bios as
my system doesn't have a floppy drive but am buying one tomorrow
do you think that when interrupted it was flashing the bios as thats the
only thing that i haven't tried?

Steve, see my post above.

No i haven't noticed any beeps

If flashing the bios was interrupted, then that could be the cause.

k so how would i go about re-flashing the PhoenixBIOS?
download the bios update stick it on floppy & plug it in then
start system? as i cant get the cdrom to do it?