That sucks. You can never cover yourself 100% from computer woes but here’s what I have recommended for CES…
Orbits backup made after each day of racing to dropbox.
Leverage race monitor and race hero so that (provisional) results get posted and stored online during the event without even having to think about it. (Requires internet\hotspot of course)
Have a backup laptop available, configured for the same network as your decoder and ready to go with the same dropbox account as your primary.