i had this same problem.. fixed it.. got to the bit where you sort out the firewall.. then the whole thing crashed.
i had LW on my pc before, wiped my pc, now im trying to install LW again its not working..
ive got norton internet security, but i dont think thats the problem, because it worked before i wiped my pc.
i clicked allow.. then the whole thing froze. this happened 4 or 5 times after restarts and complete shut downs. nothing seems to work. ive also tried the offline and online installers.
can anyone help?