The computer CAN'T see Arduino uno

Hello all,

my computer stopped seeing the ARDUINO UNO, like it's not plugged, it was working fine the last time i used it but today when i plugged it, it's powered but like not there for the pc.
the last code i uploaded to it is STILL working perfectly fine, but can not be seen by the computer, can not communicate with it

i tried:

  • plugged it to another PC, didn't see it either
  • changed the USB wire,
  • restarting my pc and the arduino,
    all with no result!

I use windows 7 / 64bit

any suggestion?

Check Device Manager and see if an unknown device appears there. You may be running into this issue:

The fix shown in the Youtube video worked for me.