About install/uninstall

cazgsrs Registered Users Posts: 1
New Seeker
I recently purchased a map of USA, on downloading it a message says theres not enough space. I don't know how I got there but I ended up in a place where you could uninstall and Install items, I sent the UK map to the uninstall and installed the USA one, I now want to swap them about but don't know how, please help !!