Until about 2 weeks ago, ProSeries 2020 was working pretty well. It crashed on occasion as I input data, but I could start it again and it worked fine. One day I tried to open it and Windows informed me that the shortcut I was using no longer had a program attached to it. I redownloaded the installer and attempted to install the app again.  My antivirus stopped it at install.exe, so I shut off the antivirus to complete the installation. Now, however the program barely makes it past the splash page before shutting down, whether or not I am connected to the internet, whether or not I run the antivirus. 

Any suggestions? 

I've uninstalled and reinstalled, I've repaired. I tried safe mode. I'm using Windows 10 on a BootCamp Mac. Everything s updated.  Thanks.