LÖVE

So I just made this moving cube thing with this code :
function love.load()
x = 0
end

function love.update(dt)
if love.keyboard.isDown("right") then
x = x + 1
end
end

function love.draw()
love.graphics.rectangle("fill", x, 10, 100, 100)
end

It's supposed to work fine, but whenever I press the right or left key nothing happens, but if I press one of the keys and then move the program's window the cube is in another position(also when I open the program without running a game there is only a still image not an animation), I do believe this is a compatibility problem, does anyone have an idea of how to fix this?(I have Windows 10 64 bits)

First things first: what GPU do you have? Are you sure your drivers are up to date?

My GPU is integrated from my laptop's i3- 4005U, I believe it's the Intel 4400. I haven't checked my drivers in a while, will see if any of them are outdated.

I meant your video drivers specifically; you should keep all of them up to date, but only the GPU ones should be relevant to the issue.

I've updted all of my drivers, still the error persists.

Thank you for the help, I've managed to fix the problem by formatting my computer and now everything works fine.

A bit... Drastic, but I'm glad it ended up working for you