After Big Sur upgrade, several apps do not work, claiming that the Mac must be reset. Resetting does not help, same error.

After Big Sur upgrade, several apps do not work, claiming that the Mac must be reset. Resetting does not help, same error. So far, Parallels and Acronis have failed, despite reboot and despite reinstall. Does anyone have a solution, other than ridding myself of my many Macs?

MacBook Pro

Posted on Nov 16, 2020 9:03 AM

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Posted on Nov 17, 2020 9:52 AM

Big Sur breaks third party extensions. I assume app developers will eventually figure out whatever magic incantation Apple intended them to use during installs. In the mean time, this worked for me:


I think this forces all apps that rely on extensions to re-authorize them.


  • Open Terminal.app and run df -h /:


For example, on my machine, my OS drive volume name is on /dev/disk1s5


  • Make a note of your volume name.
  • Boot to macOS Recovery (cmd+R while rebooting/starting).
  • Run Terminal.
  • Enter the command: kmutil trigger-panic-medic --volume-root /Volumes/<YourVolumeName>


Replace <YourVolumeName> with the volume name where your Big Sur is installed, i.e. /Volumes/dev/disk1s5


  • Restart your Mac.
  • When prompted, re-authorize the extensions.
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Question marked as Top-ranking reply

Nov 17, 2020 9:52 AM in response to pokey b

Big Sur breaks third party extensions. I assume app developers will eventually figure out whatever magic incantation Apple intended them to use during installs. In the mean time, this worked for me:


I think this forces all apps that rely on extensions to re-authorize them.


  • Open Terminal.app and run df -h /:


For example, on my machine, my OS drive volume name is on /dev/disk1s5


  • Make a note of your volume name.
  • Boot to macOS Recovery (cmd+R while rebooting/starting).
  • Run Terminal.
  • Enter the command: kmutil trigger-panic-medic --volume-root /Volumes/<YourVolumeName>


Replace <YourVolumeName> with the volume name where your Big Sur is installed, i.e. /Volumes/dev/disk1s5


  • Restart your Mac.
  • When prompted, re-authorize the extensions.

Nov 17, 2020 2:30 PM in response to jofas

Boot into Safe Mode (How to use safe mode on your Mac - Apple Support) by booting with the Shift key held down and check there to see if the problem persists.  Reboot normally and test again.


NOTE: Safe Mode boot can take up to 10 minutes as it's doing the following; 

• Verifies your startup disk and attempts to repair directory issues, if needed

• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)

• Prevents Startup Items and Login Items from opening automatically

• Disables user-installed fonts 

• Deletes font caches, kernel cache, and other system cache files



Nov 16, 2020 9:06 AM in response to chortick

chortick wrote:

After Big Sur upgrade, several apps do not work, claiming that the Mac must be reset. Resetting does not help, same error. So far, Parallels and Acronis have failed, despite reboot and despite reinstall. Does anyone have a solution, other than ridding myself of my many Macs?



Update your third party software or redirect your query to the Developers web page for support.

Nov 17, 2020 2:26 PM in response to dperry112

dperry112 wrote:

Same problem with Sophos antivirus. Not very user friendly.

There is no reason to ever install or run any 3rd party "cleaning", "optimizing", "speed-up", anti-virus or security apps on your Mac. They only interfere with the systems internal protection and adversely affect system and application performance. This user tip describes what you need to know and do in order to protect your Mac: Effective defenses against malware and other threats - Apple Community   


Uninstall Sophos according the the developer's instructions.

Nov 16, 2020 9:31 AM in response to leroydouglas

I found with Acronis, for one, that it was practically impossible to add items to Full Disk Access and therefore to install the software. Overlapping immoveable windows may be Acronis's fault but Apple continues to ratchet up security features putting the user in a position of having to move files to folders. Same problem with Sophos antivirus. Not very user friendly.

Nov 16, 2020 2:21 PM in response to chortick

I don't know what caused your problem. But my experience might shed some light on, even though I figured it out all by myself.


The same, many apps (Contacts, Facetime, iMessage, Thunderbird etc) stoped working after upgrade. Checked system log, found an error keeps popping up that has something to do with Addressbook. I realise it's something about the Contacts. Took Thunderbird out of contacts access, thunderbird worked fine. All other apps rely on Contacts. But I haven't figured out how to reset Contacts' settings. No one here is helpful.

Nov 16, 2020 11:02 AM in response to leroydouglas

leroydouglas wrote:

Update your third party software or redirect your query to the Developers web page for support.

As I wrote, I have re-installed the "third party software", aka "the reason a computer is useful". As you might infer from me naming two applications, the problem is general: both applications are affected. Since the thing they have in common is that they are supposed to run on OSX, and the OSX was newly updated, a reasonable person might conclude that the problem is with OSX.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

After Big Sur upgrade, several apps do not work, claiming that the Mac must be reset. Resetting does not help, same error.

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