mesacrash

I am a virgin. I am running Windows 10. I have downloaded Cura, won't open. I downloaded Slicer, it won't open. Minutes ago, I downloaded Reptier. It will open but I am not at alll familiar with it so I will try it in the morning. I really wanted to use Cura but I don't know what to do.

I downloaded Cura 2.5. I installed it. When I click on it, it acts like it is going to open (little blue circle spinning) but it never opens. Any help would be appreciated.