Thanks you very much to all.

I am running now Bios Version F5, but i tried all of them up to F22 Beta. From F20 and up i have all kind of instability, including BSOD, non of them solve the issue with the USB 3.1 Port...

if i turn off windows update to avoid installing the creator update i wont receive any security update or other hot fixes in the future, right?

Oh really nice, thanks, March 2017 should be fine right?

Ok i need to ask you something.
Well i wont be able to go back to the previous version of windows, because i formatted and installed windows from scratch and i downloaded it from microsoft, so it...

After flashing my BIOS again today to version F21 and even trying their more recent beta F21c I have to go back to version F5, I was able to install properly the thunderbolt driver and the USB 3.1...

Ok after flashing my BIOS back to F5 version, btw really worry about it because maybe it could break my BIOS, now except for the USB issue everything is working properly, no more bsod or...

Well actually i just made a fresh install because i ended with a big mess. No, it did not solve the problem, even after a new install i have this USB 3.1 Port Unspecified. This only happens with the...

I installed all the drivers related to my motherboard and the usb 3.1, btw i have to update the bios to the latest version, F21 something that I do not suggest because it gave me a lot of system...

My motherboard is a gigabyte z170 gaming 5 with an i5 6600k.

Just updated to the Creators Update and had a small issue. My USB 3.1 port is listed on by Notification bar as being able to "Safely Remove Hardware and Eject Media." as USB Root Hub 3.0...