Comments on: Mac OS Big Sur Freezing fix

By: Mitsu

Mitsu — Sat, 26 Jun 2021 06:22:30 +0000

Addendum to my comment: You can reinstall Big Sur but KEEP all your programs and files. THIS is the crucial step. If you upgrade in some cases Big Sur gets into this weird state where all Apple apps (messenger, Safari, calendar, etc.) start to freeze up after a short while after rebooting. But, without wiping your drive, reboot in recovery mode and reinstall Big Sur. This fixed it for me, finally.

By: Mitsu

Mitsu — Sat, 26 Jun 2021 06:20:25 +0000

Your solutions above do not fix the problem. See https://discussions.apple.com/thread/252086361?login=true&page=7 for a full discussion. I HAVE found what appears to be a solution, and I hope you see this comment so you can update your answer above.

Simply reinstall Big Sur without wiping your drive. Yes, it sounds counterintuitive – you just upgraded Big Sur, why install it again? But that’s what I ended up doing. After leaving it on for over 6 hours it hasn’t frozen yet.

By: Tim

Tim — Tue, 04 May 2021 03:09:51 +0000

“Reset the sound preferences and the Startup Disk” How does one reset these preferences? I know how to change them, but I’ve never heard of “resetting” them.

By: Martin Turner

Martin Turner — Fri, 02 Apr 2021 23:44:02 +0000

None of this helps. I found that kernel_task and PKD often run at high priority for long periods of time. I even cleaned out my 2013 Mac Pro via a posting that said temp sensors were causing excessive kernel_task. THIS IS A BIG SUR BUG! It did NOT do this with Catalina and earlier; my bet is all the extended security checking that is now (over) done.

By: Eugene

Eugene — Fri, 12 Mar 2021 02:18:23 +0000

i have reported to Apple support recently, if i can recalled, total 3 times.
1st reported, they asked me to shutdown and reboot in safe mode then restart. Asked me to monitor if freezing still occurs. But it does not help to solve the freeze issue…the problem reoccurs.
I called 2nd time and reported with same case number. Apple support aware of my problem and told me to do another steps, Reset the System Management Controller (SMC) could be another soultion to this freezing problem. I followed the advice and told to monitor.. but the freeze repeated after few hours…
i called 3rd time with same case number, now guess what… they asked me to backup my data and restore the OS. Well i followed their advice and restore the OS. However, this does not solve the freezing problem. It repeating and repeating….

This is totally bad for Apple to advice without giving the permanent solution.