Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Had to delete the complete hard drive and re-install back to the Catalina which it had from new because it crashed during OS update


This sound wasn’t like this when new


Apple store genius says its normal and can be switched off?
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.