This message relates to some free sample maps installed on your GPS at the factory & does not affect the OS Maps supplied on an SD Card.
You are okay to Accept and the message should clear and not appear again, the Maps on your micro sd map card are not affected.
We hope this helps
We have many more tips and training videos to get you going with your Garmin Handheld GPS device and Garmin's Basecamp planning software on our Online Training Resource - More info here
Map options for your Garmin Handheld Device - More info here
Buy and learn from the experts - GPS Training
