I've just found out that along with many other Windows 10 Home users, the November update ( version 1511, 10586) actually didn't install. Good improvements in the upgrade facility.....you don't get told of failure!!!
I'm currently attempting a repeat of the upgrade.....which is currently stalled at "Preparing to install updates 32%"...which others have reported it gets stuck at, but I'm going to leave it to do it's job....as its been noted this upgrade takes many hours...commented as in excess of 12 hours.... to install!
I'll report back if I get any progress....and are able to test if the USB issue is still there or not!