I had Windows 8.1 when this problem started. It's a pretty well outfitted machine and I'm not a noob. 4770k/Z87. First symptom was that two external USB drives just quit showing up. No exclamation points in device manager, nothing in disk management. Thumbdrives also not showing up.
When I plug in my keyboard or bluetooth dongle, I hear the connection sound. When I plug in a Wifi adapter or any storage.... nothing.
I've removed everything under the USB heading from device manager and rebooted.
I've upgraded to Windows 10.
I've tried every combination of legacy/non-legacy/usb3 settings possible in my ASRock Bios.
I've removed all devices and rebooted with USBDeview.
I'm pulling my hair out here. Any other bright ideas??
Edited by wotan2525, 15 September 2015 - 11:29 AM.