I MADE IT!!!!!! Only 8 hours of searching and trying and here we go!
Hardware plug for loosers)
Start regedit. (You need administrator access under Windows 7, 8 or 10.)Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\VideoUnder Video you'll see a number of sub-folders with long names like {B1E0FF3B-2B31-4B0D-8B9C-B09BBB60CB07}. Each of those has a sub-folder called 0000. Most of the 0000 folders will be nearly empty, but one of the 0000 folders contains hundreds of entries that have names of programs in them (e.g. _3DMark05.exe, playNow.exe, etc.). Find that one.In the 0000 folder you found in the previous step, right-click, and from the context menu, select New, then Binary Value.When the new key is created, change its name to DevicesConnectedRight-click on the new key and click Modify...A dialog box will pop up that says "0000" -- it's waiting for you to type data.Type the following keys acourding to your specific configuration:2x digital monitors -> "00 00 03 00" (0x30000)2x analog monitors -> "03 00 00 00" (0x3)digital/analog -> "02 00 01 00" (0x10002)analog/digital -> "01 00 02 00" (0x20001)Although I have only my TV connected to this PC I used the first one "00 00 03 00"You can disable the unused "monitor" later by not cloning or extending your desktop to that screen.Click OK, exit RegEdit and reboot.Source: Techtips