MacOS 11 is designed to run smoothly but it is not unusual that this new Mac version causes freezing followed by a sudden system restart on some computers.

Some Big Sur users have been reporting a problem where the whole OS spontaneously freezes and then reboots on its own after a minute or so.

As per the reports, this Big Sur freezing problem often occurs in a loop a little after login but there are cases where it happens when the user attempts to do some basic task such as launching a program or opening a new tab in safari.

The system freezing, in general, is an issue that is related to the performance, thus, it may be beneficial to improve the overall performance in order to fix this problem. 

In this post, we have come up with some suggestions that might be able to help you solve the Big Sur Freezing issue. Giving them a try might be a good idea if you are looking for a DIY solution:

Big Sur Freezing Solution

  1. Start with the good old system restart. Shut your Mac computer down, wait for a few seconds and then switch it on again.
  2. Another thing that might help is to disconnect all peripheral devices and check if you are still experiencing the Big Sur Freezing issue.
  3. A possible fix is to reset PRAM and NVRAM in your Mac and see if the issue persists.
  4. Reset the System Management Controller (SMC) could be another soultion to your problem.
  5. Reset the sound preferences and the Startup Disk. Sometimes, these preferences might be causing system issues.
  6. Launch the computer in Safe Mode and see if you are experiencing the same Big Sur Freezing issue this way. Then, restart the Mac computer normally.
  7. Check your Mac with Apple Hardware Test to detect if there are hardware issues that you don’t know of.

Did we help? If yes, a thanks in the comments would go a long way to warm our hearts!