This message was posted on behalf of Intel Corporation
In regard to your inquiry, I just wanted to let you know that the USB feature is capable to transfer data but not video, that is why the adapter will not work.
As a workaround, you can use an active VGA to HDMI adapter, but I need to let you know that not all of them are fully compatible, so, if you are interested in getting one of them, it will be better if you check that with Dell directly, they might have a list of compatible devices, just to make sure it is going to work properly.
Also, even though the port on the all-in-one is a HDMI input, for testing purposes, if you have the option, you can always try to connect it to the TV using an HDMI straight cable, just to confirm if maybe that works.
According to the specifications of the all-in-one, it says it uses Intel® HD Graphics 4000, so, just in case, let me give you the latest version of the driver for that graphics controller, version 4425:
Still, the USB adapter will not work, but it is always good to have the latest graphics driver.
Also, you can check for a newer driver on Dell's web site:
Any questions, please let me know.