Go to different pc with xp
install garmin usb drivers
First flash with cure
[Only registered and activated users can see links. ]
After that try to format with windows format tool (also try format when PC is in safe mode)
If windows format tool wont work try in normal and safe mode with [Only registered and activated users can see links. ]
If both tool wont work try to manual delite folders from your nuvi and then again try to format.
When you finish flash with folder original and then create empty folder Garmin
After nuvi restart you wil have inside folder Garmin garmindevice.xml (if you have garmindevice.temp just rename to garmindevice.xml) and run webupdater and install all.
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