You would need to open defender and look at quarantine, or log to see what it picked up. Delete all history in the browser you use and go control panel, internet options and do the same, delete everything. As for the noise, MS has made it harder for a BSOD, it recovers if it can so people don't get a BSOD, even though it would be better so it could be debugged. Once in a while, go to Bit Defender and use the online scan tool if you like, it's one of the best.