I had the same problem installing on Windows 10. I even tried downloading a a free trial but most of the designs were not available. Eventually after reading advice on the net I inserted my CD, navigated to the exe file, right clicked it and selected Run As Administrator. When I opened it for use I right clicked the shortcut and again ran as administrator. It does ask for the disk to be reinserted but seems to run okay for new designs. Not so for old designs. When I tried to edit any navbar all it did was to create another navbar. I may need to work out how to delete the old navbar and reposition the new one. Possibly some sort of editing of the js file. Not something I am familiar with.