Article - "Mathcad Prime does not launch after the initial splash screen if Windows update KB4055002 for Microsoft .NET Framework 4.7.1 installed on the machine":https://www.ptc.com/en/support/article/cs277907
Article - "Mathcad Prime does not launch after the initial splash screen if Windows update KB4055002 for Microsoft .NET Framework 4.7.1 installed on the machine":https://www.ptc.com/en/support/article/cs277907