First of all make sure the new monitor works. Plug it in as the main monitor and make sure the thing is actually putting out a display. If it is follow these simple instructions:


Im guessing you have already tried this but I will tell you what I done.

Plug both monitors in and then restart the computer.

Now, right click anywhere on the desktop and select properties, then click on the settings tab.

From here you should have an option to select 2 monitors or at least have a drop down showing a secondary monitor. (if you don’t have this I think you might have an issue with the graphics card).

Set the secondary monitor as extended desktop.

Done.