CS:GO closing or crashing?

— Make sure you are not in Panorama UI.
Change your launch options, and opt-in "-legacyscaleformui" (new command, -scaleform does not work anymore)
— Make sure you do not close the window right after VACNet injects itself.

ESP not working?

— Open your CS:GO console, and type in "net_graph 1"
Visual C++ Redistributable - Whichever ones relates for you dont ask me.
Microsoft .NET Framework 4.5 - Basic requirement for everything these days.