Unity not downloading.

Hello, for the past few hours I’ve tried many things to download unity, but it’s not working! I have a Windows 8.1 (64 bit) and I’m just plain confused now. Also, this is what pops up when I try. What should I do? 50446-screenshot-13.png


If it’s a download assistant problem, try to by-pass it: How do I update Unity if installer is blocked? - Unity Answers