Not enough free space to update for WNRO??

sjs7 Registered Users Posts: 2
Apprentice Traveler
I have an old Tom Tom XXL540S that needs the WNRO update but is no longer supported. I tried to update the fix from Home but at 24.6MB,for the update I don't have enough space on my device (-1.2Mb) according to the failed attempt reply. Any ideas for a novice computer person on how to make it fit so that the GPS can still be used?