problem loading sketch

maybe for you is simple to solve but i have lost two hours....

these are the error code:

Arduino:1.6.7 (Windows 10), Scheda:"Arduino Pro or Pro Mini, ATmega328 (5V, 16 MHz)"

Lo sketch usa 17.192 byte (55%) dello spazio disponibile per i programmi. Il massimo è 30.720 byte.
Le variabili globali usano 1.254 byte (61%) di memoria dinamica, lasciando altri 794 byte liberi per le variabili locali. Il massimo è 2.048 byte.
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xbf
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xbf
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0xbf
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0xbf
avrdude: stk500_recv(): programmer is not responding
Problema di caricamento sulla scheda. Guarda http://www.arduino.cc/en/Guide/Troubleshooting#upload per suggerimenti
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0xbf
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0xbf
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0xbf
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xbf
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0xbf
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0xbf

Questo report potrebbe essere più ricco di informazioni con
"Mostra un output dettagliato durante la compilazione"
abilitato in "File > Impostazioni"

i use arduino pro mini 5v, 16MHz,
FTDI 232R with 2.10 drivers

Perhaps try the 1.6.5 IDE.

Or a different PC not running Win10.

Or FTDI 2.12.14?
http://www.ftdichip.com/Drivers/VCP.htm

tryed with windows 8.1, ide 1.6.5 and FTDI 2.12.14
always some error this time was 0x ec

i m starting thinking about changing design