DrTwinkie :
I Just finished building my PC. I know you can install Windows 8.1 on a bootable USB. But I don't really want to do that. Is it possible to install Windows on an External USB optical drive? Thanks
Just tried this yesterday. 03/16/16. (Win 7 Pro 64 btw...)
Windows kept prompting looking for drivers. I thought it meant the DVD drivers that came with my external... but it was the 3.0 USB drivers it was looking for.
Like a lot of others have said, you need to use the 2.0 ports. Which, on my rig, took a while to figure out how to do. I only had 2 - 2.0 ports working, and was using a USB keyboard and mouse. I used an adapter (under $10) on my front USB 3.0 ports and got them plugged into the 2.0 slot on the MoBo.
One of the drawbacks of using a cheap mATX board I guess.
After that, everything fell into place automatically, I didn't need to get into BIOS or anything.