I switched to the PC at gta V since yesterday (I played it on the PS4 before). I have a problem though, I know that I may be a little lost because I'm not very familiar with gta on the PC, but when I play the game in windowed mode, my mouse can't get out of the game window. I want to play the game in windowed mode but my mouse doesn't go over the edge (I know how to maximize / minimize it, I just want to know how my mouse goes over the edge of the game!)
Press Alt + Tab once - then you are out of the game with the mouse.
Yes, the window does that automatically. You can resolve this by deselecting it. You can do this by:
Open a program with a key combination
Open the start menu
Press Alt and Tab
Generally interact with other system elements.
