My last post was incorrect. Downloading the driver fixed my problem and I can now make HDMI connections
to both of my TVs; a Samsung and a Panasonic.
I do not know why I could not connect on the...

FWIW
I installed the latest driver for my Intel HD Graphics 4000 but my HDMI still does not connect.
My old driver for Win 8.1 was: 10.18.10.4276
The new driver I installed for Win 10 is: ...

I am having the same problem with my ACER Aspire R7.