Installing 10.11.4 (all downloads made before .5 came out) on a Gigabyte z170x Gaming 5. The installer loads, but the usb3 ports aren't yet working and I only have 2 usb2 ports--one for the keyboard and one for the drive. Which means I don't have a working mouse to run disk utility. The cursor is literally unresponsive in the upper left corner of the installer screen. I've been doing quite a bit of searching, but I'm not sure what my next step should be. It could be I just need to insert the...
Installer stall: My kingdom for a third USB2 port
Installer stall: My kingdom for a third USB2 port