Windows 10: Buzzing noises then bluescreen crashes

Hi
Please be gentle with me, I'm a newbie and hopeless with advanced tech-speak.
I'm using Windows 10 on an old ThinkPad laptop which has been fine until recently, when simply watching YouTube videos the audio began producing weird intermittent short buzzing noise, about 4 to 6 in succession spaced about 2 seconds apart. On longer videos, it would often the crash to a bluescreen with an error message saying something like "Your PC ran into a problem and needs to restart - try www.wimdows.com/stopcode which I did, update drivers etc. but to no avail. Help! Can there be a quick easy fix that even a dummy like me could understand?
Thanks in advance,
s

:)

 

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