hey guys i had the same problem, but i just fixed the problem for myself rite now.
wat i did was disable trend micro security services from my router, then IE was back to normal, and i could download all the files i wanted. hope it works for u guys :)

i hav the netgear router so i went on http://192.168.0.1/ then clicked on the security service tab and unchecked the box next to Enable trend Micro Security Services.