This was perfectly working on two computers earlier. I soldered my Arduino nano along with a couple components onto a PCB today and wired everything up and when i plugged it into my desktop, windows 7 said that the USB device is not working and something may have "malfunctioned"
I then plugged it into my laptop and loaded the blink sample program and a couple different versions with different delay times and everything was working perfectly.
After that, i switched to my desktop again and reloaded the original program that i was gonna run on it and it printed one line in the serial monitor (it is supposed to give out a continuous signal from a sensor but this time it only printed "setup" which could mean that it did not receive a signal)
now when i plug it in to any computer, and no matter how i reset it, the device is always unrecognized. Could it be that my arduino is broken?