This is the latest TomTom 2 Gig North American map files.
Before updating your GPS I highly suggest copying your existing setup to your hard drive via explorer in case you want/need to restore it.
To update your GPS use the following procedure.
1. Plug your tomtom device via USB
3. Copy and run FastActivate.exe as admin from your gps root folder and push the first, second and third buttons allowing each to do its thing in turn.
Alternately you can use auotactive.exe from the root folder of your gps, with it there are no additional buttons to push.
4. Disconnect your gps from the computer and wait for it to reboot.