So I have had this laptop for about 10 months roughly and it works fine. Until yesterday when it made this weird noise so I turned it off and back on again. After some investigating I've realised it's the fan(s) causing the issue. I tried cleaning them and I tried not doing anything intensive on the laptop to make sure it's not an overheating issue but it still makes the noise. The noise can start from 20 mins after being booted or 2 hours after. Lowering the fan speed dulls the sound a bit but that's not ideal. Any ideas or fixes for this problem would be appreciated or if you have any extra questions feel free to ask.