Have you tried a surge protector?

Have you tried a surge protector?

Have you tried using your laptop at a neighbor's house to see if the problem is not restricted to yours?
Is there something transmitting a high wattage radio frequency signal in your area, or perhaps a high voltage power line close by where an insulator is breaking down or there is a high resistance short?
Just spitballing here.

Thank you for the replies, Auger and randy.

Yes, I've tried a MOV based surge protector. The same problem.

Randy, the laptop works fine everywhere, except my house's power outlet.

Yea, there is a 33KV substation, just 50m away from my house. Could that be a problem?

Thank you.

Have you called the power company, they can check the transformer that feed your house for free since it's theirs. You can also try to locate an o-scope to check the voltage coming out. There might be a signal you can see coming from somewhere. I remember 10-15 years ago, many companies started making systems that used the wires in the house to send data between devices.

Have you tried all the outlets? I'm assuming you have, but just double checking.

I'd also verify your ground integrity. Tighten screws and what not.

Here is a link that might be useful: FCC Interference source.

Thank you very much for the reply, Eline. :) I'll do it. I think I need an oscilloscope and inform the power company if I find any HF Interference. I shall keep you updated. :)

Thanks.