Hi there and welcome
To do this, you need to download the Garmin Express software which you can obtain from my link below
Install it on your computer and once installed, you can then connect the Garmin to your computer and update it again like you did before
If you have any problems, or would like any additional information or assistance, please do not hesitate to let me know.
Else if you can take a second to rate my service by clicking one of the stars at the top of the screen then submit, that would be greatly appreciated.