I got a new computer.
It runs on Windows 8 with all the "security" features it obtrudes.
I cannot find where to change port number of my USB device.
I followed directions from the internet but the ports shortcut just isn't there.
Also.
What is the best Arduino Nano replica that has a real FTDI chip, not a fake one. Tell me about your experience and the best vendor to buy from. (On Ebay, perhaps)
I got an idea: to type Arduino Nano FTDI onto ebay search engine. Some interesting results came up...
I bought a board that mentioned FTDI in a description, I hope it won't have a fake FTDI chip...
That is probably all correct (language issues aside) but applies to the Uno or mega rev3 driver, not the FTDI driver that the nano board uses. I noted that the FTDI website has an updated windows 8.x FTDI driver available for downloading. That is probably the path the OP needs to look into.