Problem: erwin is setting my models to Read Only. I am logged into Windows 10 as a Windows Administrator user but when I go to save my model changes erwin complains the file is read-only and cannot do so.
It seems this is a Windows privileges issue of some sort. Since this is most likely a problem caused by Windows privileges, the quick solution is to right-click the shortcut that launches erwin dm and choose Run As Administrator.
If that approach works for you, you can set the shortcut to always run that way by modifying it
Tip: Configure Applications to Always Run as an Administrator