The interface cannot resolve noise if the bus-power is noisy due to a third-party laptop power supply. Bus-powered interfaces receive their power from the computer. You won't be able to hear the microphone sound while recording, but you can still record and listen to the recording afterwards. Make sure the Computers P ower Supply is Official and not a 3rd party product.
This way the microphone sound will not be monitored through the speakers. If you can't get rid of the feedback noise, you can disable monitoring. Sometimes, feedback happens when you think you are using the audio interface / lined guitar, but you are in fact using the computer's built-in microphone. Make sure you are using the right audio input device.Make sure that the computer loudspeakers are not being used.The sound coming out of the speakers is fed back into the microphone, then out of the speakers again and so on. This feedback loop causes a howling noise or beep which can be very unpleasant. Feedback can happen when the microphone is too close to the loudspeakers or when the volume is too high.
