Hy so my Problem is i got the Engine today and i installed the launcher without problems then when i try to Install the Engine it start to donwload and when it reaches i think 80% the donwload just finish. Then it tries to install it, it goes for 69% then it start again 50%…67%…69% and it starts again. after a few times it comes the Message Install Failed A File corruption has occurred Please try again later. I already installed it new in different folders ect. but it just wont work!!! I hope you guys can Help me cause i paid for this Engine
OK i solved the Problem i installed it on C and used it as Admin. 
thanks for such a powerfull engine