I had a similar problem with ArcGIS Pro crashing at startup every single time I tried. I sent the error report to esri. I have been using Pro 1.2 successfully ever since on my BootCamp'd MacBook Pro (with 8GB RAM). Three weeks ago, I received this message from esri support: We received the error report following your recent ArcGIS Pro 1.3 startup software failure. Analysis of the error information indicates the problem can be resolved by applying Windows patch KB2533623 found here (https://support.microsoft.com/en-us/kb/2533623). I have not had a chance to test it since I just bought a new machine and will be installing Windows 10 on it soon. Best of luck!
... View more