wonder if you can help. I have a zumo 349LT and I've registered, connected and updated maps. However, when I click Map Options the Install to Computer button is greyed out.
I am sorry that you are having trouble with this. I have tested this and I am experiencing the same issue on one of my devices with the Europe maps. I am creating a case and will post back once this is resolved.
Have recently fresh installed Windows 10 Anniversary (on laptop) and Windows 7 SP1 (on desktop).
Cannot download Europe map 2017.10 to either machine due to option 'Install to Computer' being greyed out in Garmin Express.
Any progress on this? This is quite a serious problem and makes using Basecamp a very poor experience due to it being so slow with using maps on the device