The Hebocon craze is sweeping the nation… sort of… Crapbots of the IoW held a tournament on the 30th May 2015!
Hackaday is reporting that a recent Microsoft Update includes updated FTDI drivers that are altering the PID values on counterfeit FTDI chips. The upshot is, your Arduino clone may stop working if used with a recent driver on Windows.
The change is reversible though.
Details on Hackaday