You can also try Mystz solution which works for me: http://steamcommunity.com/app/291650/discussions/0/618457398961092964/#p4
If you don't wanna read the whole thread, basically, it says that you need to go through that: "Start steam, go to C/ files / programme files / Steam / Steamapps / Common / POE folder, right click on POE exe run in admin."