Using three displays on laptop

I have a client using an HP 620 laptop which was originally Windows 7, upgraded to Windows 10. The user wants to have 2 external monitors in addition to the laptop screen. 3 screens in total.

When I plug in a VGA monitor and an HDMI monitor, the display settings seems to know both monitors are there, but I can only seem to send video to the laptop screen and *one* of the monitors at any time.

I've seen online where people are able to use all three at once, but I cannot find any setting that does this on the HP,620.

Anyone have any ideas?

Thanks.
Dave
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DaveWWWAsked:
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Joe Winograd, Fellow&MVEConnect With a Mentor DeveloperCommented:
Hi Dave,
The quick answer is that you need an active adapter, not passive, in order to get the third monitor working. Here's my detailed answer at another EE question (I have HP EliteBook laptops and HP advanced docks):

https://www.experts-exchange.com/questions/28585445/Want-To-Add-3rd-Monitor-To-Windows-7-PC.html#a40513660

Also, you need to disconnect the laptop screen so it allows you to extend the desktop to the other two monitors. Here's my detailed answer for that at another EE question:

https://www.experts-exchange.com/questions/28496094/Multiple-mornitors.html#a40256592

Regards, Joe
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Rob KnightConsultantCommented:
Hi,

I don't think the GMA 4500MHD is fully supported in Windows 10?

What video card does Device Manager show?

Thanks.
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Rob KnightConnect With a Mentor ConsultantCommented:
You might find you have to install the driver as if it's Windows 8.1 and even then, there are risks in doing so.

If you choose to do the following, you do so at your own risk:

http://www.tomshardware.co.uk/faq/id-1656437/install-intel-display-drivers-windows.html
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Seth SimmonsSr. Systems AdministratorCommented:
but I can only seem to send video to the laptop screen and *one* of the monitors at any time.

seen this many times before
it is because the graphics hardware does not support 3 displays
if you have 2 external monitors, you can use both of those but not at the same time with the notebook display
that's aside from the lack of OS support (last intel drivers i see are dated 2013)
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