Hi! The laptop won't boot until after as long as 24h. Boot time as gone lengthier and lengthier with time, to this...

It looks like a stuck key. Changing the keyboard is cheap and rather easy. There are three screws holding the keyboard. They have a little keyboard next to them. One you can see on the bottom of your laptop and the two others are under the hatch. Take off the hatch and the 3 screws (one may be hidden behind a sticker). Now,gently open your laptop a right angle, and use a thin screwdriver or something like that to push out and unclip the keyboard. The keyboard is attached to the motherboard with some kind of clip. Gently liberate the keyboard from the motherboard. Now you can replace your keyboard with the new one. You can find some cheap keyboard replacement on AliExpress. That's what I did.