I can't help you with the VGA adapter or the driver problem as I have no experience using that usb type.
I myself & I believe most users use an HDMI to AV converter.
This won't help with your VGA setup.
These are quite inexpensive and are just plug and play, no need for drivers.
The one I use is the same as this one:
http://www.amazon.co.uk/eSynic-Digit...ds=hdmi+to+rca
I'm sure you can find the same item from where you are.
My only suggestion if you want to use the VGA as well is to use the HDMI splitter amplifier first.
I have this one that has worked well for me but is showing as unavailable at the moment.
http://www.amazon.co.uk/dp/B00R26TDB...986871_TE_item
You would connect this to your HDMI out then plug the AV converter into one output and a HDMI to VGA converter into one of the other outputs, again no drivers are required for these devices.
An example HDMI to VAG converter:
http://www.amazon.co.uk/s/ref=nb_sb_...tomotive%2C195
I have not used this type of converter myself but see no reason it would not work.
I personally use the HDMI splitter combined with the HDMI to AV converter as I run to 2 HDMI TV's and one TV with AV in.
The first item the HDMI to AV converter, you can run that with a splitter cable to 2 separate TV'S with no noticeable loss in quality as another option for 2 displays.
One point to bear in mind when using the HDMI out is it will divert the sound through the HDMI out cable. With the converter it has audio out rca connecters that you can use as your sound source else you will need to disable the audio though the HDMI connection. To do that, when you have an HDMI connection open the sound properties. You can either do that by right clicking on the speaker icon on the task bar and select Playback devices then make sure playback tab is selected, right click on HDMI device and select disable, this will only disable the audio not the video.
You can also access this via Hoster Tools/Audio Controls/ Manage audio cards.