Solved: Screen stuck in 4:3 aspect ratio in Windows 10 on VirtualBox

[kyllua]

As the title suggests, I have installed Windows 10 Pro on VirtualBox (not activated yet). However, I am unable to change the settings both from the Windows settings and the virtual machine settings. Even when I try to adjust the screen resolution from the View menu, it doesn't seem to change as if it's stuck at a certain resolution. When I attempt to change it from the Windows settings, only 4:3 resolutions seem to be available.