Can a fake second display be enabled in Windows 10?

Solution 1:

This is by far not the ideal solution, but for now it will do: I put a 102 Ohm resistor across pins 2 and 7 of my VGA port (also known as the headless Mac Mini trick), and Windows 10 now believes I have a second monitor attached.

On a different computer I had to use pins 1 and 6 and reboot before the "monitor" would work.

Solution 2:

Just spent last two hours trying to figure this out.

1. First go to Control Panel (not Settings app)
2. Go to Adjust Screen Resolution. You will get a similar window as you did in Windows 7.
3. Click Detect
4. Go to display Drop Down and select "Display Device on VGA"
5. Select Desired Resolution. If windows is unable to save your settings use the software from your video card to adjust the resolution.
6. If you aren't able to output the display to the Fake screen only, Press Windows+P and the select "Second display only"

I hope this helps.