Before update please follows this step (Tested on windows 10)
1) Disable driver signature(http://tinyurl.com/mdn3739)
2) Please download the NO LONGER SUPPORT version(2.10.00 WHQL Certified ) FTDI driver at (http://tinyurl.com/5w3fju)
DISCLAIMER - USE AT YOUR OWN RISK
more information detail:
• Unbrick Arduino FTDI FIX (Driver Upda...
http://tinyurl.com/qfye9sc