If you have Windows 10, and cannot Drag and Drop documents from your Windows Explorer to your ProjectWise Explorer (get circle with line through it). You can fix this by going to your lower menu bar, right click on it, and select “Task Manager”
In Task Manager, Select “PWC for Windows” > right click > Properties > Compatibility tab > Uncheck “Run this Program as Administrator” (see next two screen shots). You would now need to close ProjectWise Explorer, and then Re-Open it. You should now be able to drag and drop documents from Windows Explorer to ProjectWise Explorer.