Hello!
Is it possible to use the whole screen, remove black spaces?
It depends on what you're trying to do and other things.
If you're talking about horizontal black bars on top and bottom of screen when watching a movie, then it depends on the movie. One movie's aspect ratio may be 16:9 ( aka 16 x 9). If that's the case and your monitor is a 16x10 ( like a 1680x1050 resolution samsung 22" monitor I had years ago), then black bars are pretty much inevitable. If you watch that exact same movie on a 16:9 monitor, there should be no black bars unless you have set in the Movie-viewing program you're using to watch the movie to adjust the zoom or aspect ratio to something different than the default.
If the movie is the , now standard, 21:9 aspect ratio, then when watching on a 16:9 screen ( like 1920x1080p full hd resolution is 100% of the time) you'll see around the same size black bars watching that same movie using same movie -watching program as you would a 16:9 movie on a 16:10 monitor.
Now if it's an issue of you're seeing black bars on top and bottom or all around, then chances are the resolution and/or scaling isn't set correctly in your graphics card's display settings menu(s).
Details man.....details.
What model is your monitor? Resolution? To find out your resolution, right click an empty area of your desktop and select " display settings" or " screen resolution" or something like that depending on which version of Windows operating system you are running.
When you find that out, then you can work from there.
If you're running one of those older monitors ( doesn't matter if it's the fat aka CRT monitors or older LCD monitors) whose screen looks almost like a perfect square....then you'll get black bars on ANY movie that isn't 4:3 aspect ratio ( which are often really old movies..older than 15 years often)