Sorry if I was not clear on this. No external drives were plugged in during any update/upgrades. I am just describing the glitch that showed up after the switch to v1607 build 14393. Before the...

That makes sense. So then you wouldn't necessarily have noticed the change after doing the v1607 update. My external SSD goes with me to work and home again. Before the update I had no trouble...

Rolling back from v1607 to v1511 scares me -- a can of worms perhaps. But after multiple troubleshooting and driver checks, etc. for my Samsung SSD T1 not being recognized, I forgot to remove it...