Lost external USB monitor after W10 update of 10-01-2016...need help.

Hello,
I use a duplicate portable USB monitor which is turned to face my clients so that they can see what is going on and understand what I am doing. I typically meet with my clients in their home, thus the portable USB monitor. It is an important part of my work, and it is essential.

Here is some relevant info on the W10 problem:

-64 bit system

-July 2016,: Did free upgrade from W7 to W10 Home. External monitor worked w/o a problem. as "duplicate" monitor.

-Oct. 1, 2016: Auto update resulted in losing the "duplicate" monitor option for my external monitor, AOC External USB Monitor model E1649Fwu. Display settings does not show the option "duplicate", only shows "extend".

-Note: A regular VGA interface monitor will function normally as a "duplicate" monitor,
but the USB monitor works only in the extend mode. I need the "duplicate" mode for the USB monitor.

-The Oct. 1 updates are:
Update for Microsoft Windows (KB3194496) Microsoft Corporation 10/1/2016
Update for Microsoft Windows (KB3176936) Microsoft Corporation 10/1/2016
Security Update for Adobe Flash Player Microsoft Corporation 10/1/2016
Update for Microsoft Windows (KB3176937) Microsoft Corporation 10/1/2016
Update for Microsoft Windows (KB3176935) Microsoft Corporation 10/1/2016

-Uninstalled the DisplayLink software, then ran DisplayLink Cleaner,
then re-installed the most recent DisplayLink driver version: 8.0.762.0 (Driver 8.0M2 29Aug2016)
The problem persists--no duplicate monitor option in Display Settings.

-Uninstalled the first of the Oct.1 updates, but my word processor lost its macro functions, and other software had other problems. A re-installation of the word processor did not repair its macro problems, so I updated and the first Oct.1 update was re-installed, then my word processor started working again. My idea was that I could remove the updates, then classify my internet connection as 'metered', so a to prevent updates. Obviously, this solution did not work.

I hope that a knowledgeable contributor to this forum can help me with the problem.
Your help would be much appreciated.
Thanks