@[deleted]:
don't think so. my mout and works really well.
try to configure guess access on the windows machine and try it. or you could use a password on the windows machine.
@[deleted]:
no i do not use spotify. it happens even if it isn't doing a thing.
any way, i think i found the problem. it seems to be on the power supply. i was using the usb charg future of my desktop, and it boot ok, but after a while it look like was dead.
after reading some faq about the pi, i notice that the powerled do no remain lid. this indicates prolems on the power supply. saw this here:
http://www.runeaudio.com/documentation/troubleshooting/rpi-troubleshooting/
changed to a good power supply, the led remains lid and the pi looks more stable.
thanks for the help and hope this helps other too.