Thanks Mohitkshah (See post Jun 19, 2020)
I spent some time on this, saw the MS IDD adapters but didn't risk removing them. Was able to uninstall afterwards when I followed your advice. I also stopped the windows usb display in Task Manager because it seems to run on startup even if the adapter isn't plugged in.
There are about 10 others with the same issue on this forum, I guess we all used Amazon. So the vendor has created at least £150 revenue on this one unworkable product in the last month. It's probable that only a small number of users found this forum so s/he could have turned over much more cash. The stores my vendor traded under were
LIDEDE
DELILI
WARRKY
MOSOY
CHEERACE
I'm going to notify Amazon and claim a refund. If a few others do the same Amazon may do something. I have a friend whose business was nearly destroyed by someone faking his brand and it took about a year to get something done.
Cheers,
Kumar