Dear catymag,
now nuvi 200 is seen by Windows as drive F: name "Garmin nuvi" has main directory named Garmin, inside two sub-directories:
- Diag (sys_log.bin)
- gpx (current.gpx)

Now boots correctly but with warning "No detailed maps found that...etc"

I understand thet I have to refill some missing software and maps, of course, but, strange enough, it cannot be seen neither by Garmin Expres 3.2.29.0 nor by Web Updater 2.5.6.0
Puzzling, ain't it?

Later