I've searched the internet and I came across this post but it only solves one half of the problem. The first comment of this answer describes my problem but I could not find any solutions to this 'problem'. So I'm making a new post for this. Any help is appreciated!
So it seems there is no build-in way to achieve this. It's basically all or nothing. http://www.tekrevue.com/tip/disable-aero-snap-windows/
Worth considering, however, is that you’ll also lose the ability to position windows on the right or left side of the screen, minimize, and maximize by using the keyboard arrow keys while holding the Windows key. For many users, the mouse-based snap features have a tendency to be annoying, but the keyboard-based window management features are great. It’s a shame that Microsoft treats Aero Snap with an “all or nothing” approach, but users can always turn to a third party window management utility if they miss this functionality.
I don't know where to look for software which provide these functionalities, so I'm open for software suggestions!
There is actually a built-in option to do this.