Not recognising any USB devices

OK, I might have missed it, but did you go into BIOS and make sure the USB ports are enabled ?

Idea - I am running W10 64bit. So maybe Gigabyte doesn't support 64bit?

According to Gigabyte Support it does. Version 4.90A
GA-970A-DS3P (rev. 1.0) | Motherboard - GIGABYTE

Eagle51 said:

According to Gigabyte Support it does. Version 4.90A
GA-970A-DS3P (rev. 1.0) | Motherboard - GIGABYTE

Wait. But this link shows me audio drivers. What do I need audio drivers for?

Ooo. Now I got it. I had a wrong driver. Ok, I'll get the right one and rapport

The USB3 Drivers are there also.

I've got no idea what's going on here. I downloaded driver, the right one(at the top of the installer even reads "VIA XHCI HOST Controller Software Package V4.90A" and I have the same stop message.

Sorry you're having so much trouble with this. The only thing left I can think of is to ...
1. Go into BIOS and make sure the USB3 ports are enabled (you never did say if you did this)
a. XHCI-Handoff (default is enable)
b. EHCI-Handoff (defalut is disabled)
2. Install the Chipset Drivers for your motherboad from the gigabyte site (if you haven't already)
3. Then try and install the VIA USB3 drivers.

I will, in a minute, but my point is.... why??? Why this god damn W10 do this???? One day it works, the next one it doesn't. And if I would change something in my system, I would get it. But I haven't! That's the part that's bugging me the most.

Who knows. Maybe (with today's technology) your motherboard experienced some difficulty with a USB device and maybe decided to automatically disable all your USB devices. So it's a good idea to take a glimpse at the BIOS setiings. It's also a really good idea to check in there because Windows 10 sees your USB devices, yet the 'power' to them doesn't work. It's likely that your BIOS is saying to disable them.