Whenever I connect my monitor to my graphics card with my HDMI cable, it doesn't fill the entire screen the moment in enters windows. I own a Samsung S24B370HS - 24 Inch LED Monitor and a gigabyte HD7870 in case you need the information.
Any ideas on how I can fix this? Thanks in advance.
I assume you've already tried changing the resolution? On certain monitors - there are settings to change the 'fill mode' (at least on my dell u2711 haha) - the amount of screen the image occupies. Have a tinker around; see if your monitor has something like that.