If you're hearing static noise when your laptop is plugged in, it can be a sign that something is wrong. If the problem persists, you'll need to fix it before it causes damage to your laptop.
First things first, check whether the problem is coming from your laptop's cooling fans. These fans are used to keep your computer cool by circulating air around your CPU and GPU, so it's very common for them to make noise while the laptop is plugged in.
Second, try to do something on your laptop that normally makes the fan spin up, such as launching a game or playing a 4K video on YouTube. This should help you to find out whether or not your laptop's cooling fans are making the noise, and if they are, then it could be just a case of clogged up dust causing the problem.
Third, you can also try to update your BIOS. This is a bit tricky and risky, but it's worth a try if you think your BIOS might be causing the static noise when your laptop is plugged in.
Fourth, you can also try to replace your hard drive if you believe that the static noise is a result of your hard drive. However, this might not always be the case, so you'll need to do a bit of research on your laptop's model and make sure that you get a hard drive compatible with it.
