Hey, LONGHORN/VISTA .. is not meant for normal PCs. You should have 256 RAM. Processor speed above 1ghz. Requires a DVD drive. Or you can break the DVD disk into 3 -CDs which I did.
Amar taye install hote praye 4 ghonta laaglo. And, starting up windows takes about 15minutes time. sux. Then it was not able to detect VGA. It was only showing up 8bit colours. huh.. It was too slow. So, gave it up. Installed XP again.. XO rulez..