Clean C-Pen Core user/settings files (Windows)

If C-Pen Core fails to start properly, it may be solved by erasing C-Pen Core settings files.

1. Make sure C-Pen Core is NOT running. 
2. Open File Manager and navigate to C:\Users\[your-user-name]\AppData\Roaming\
   • Erase subfolders Virrata AB and C Technologies.
3. Navigate to C:\Users\[your-user-name]\AppData\Local\C_Technologies\
   • Erase subfolder CPenCoreApp*

The folder AppData is a hidden folder. 
Check this article for information how to make hidden folder visible.