Yes,yes,yes
Thanks to all of you ,I good news ,I did it .I clean up with electrical cleaner spray and a small brush in inside my nuvi to usb mother conector.
Did you do a happy user.Thanks to Kunix,Dasilvarsa,Popotnik,Catymag,Neil, and all user .

Now the PC recognize my nuvi 2445,when I conected.
Thank you all,from my heart!