Although it can be done, it is extremely difficult. I work as a repair technician. We recently had to “buy out" a Surface Book since it had liquid damage and the customer had purchased accidental damage protection through our store. Since I have one of these myself and had been considering using liquid metal, I decided to grab it for practice. (They get destroyed anyways when bought out.) If you don't have experience I wouldn't recommend trying it. Normally I'm all over all kinds of DIY repairs. But not on this device. The screen took me about 3 and a half hours to take apart. The base took me about 1. I did bend the base cover just slightly since I does through this portion. Keep in mind that I work on computers on a daily basis and have done thousands of repairs in the past. Surface devices are very unique in difficulty to repair. Also, the Surface Book 2 does have issues with subtle coil whine, so it is a possibility that the noise you're hearing is actually coil whine as opposed to being caused by dust. Unfortunately there's not a whole lot that can be done about coil whine. And if that's the case, you'd be risking taking it apart for nothing. My suggestion would be to stay away from any repairs unless you can afford to lose it. I'm not saying it can't be done. I'm saying that there's a very high chance of damaging it. So be prepared to purchase a new device just in case.