Huge problem with the update

i been trying for over 10 hours now to install this new client, downloaded it atleast 15 time, countless number of install attempts

MY PROBLEM: when i open the exe to install, the please wait... gray box comes up, but after about 5min it closes and shows up with, "This is a client file that can be used after legend 5.0 heroes of alexandria update"

ive googled everywhere, tried countless numbers of options, and have completely hit a stone wall

Does anyone have any suggestions?

Can u tell us from where you download client?

ive tried from the main site, the link that Simply1337 posted, and one other site that i dont remember...ive also completely removed the previous version

Open as Administrator?