I've just updated to macOS Big Sur 11.0. and I'm facing a huge battery drain and cpu usage probably caused by this "kernelmanagerd" process. Is there something I can do to stop it?
MacBook Pro 13″, macOS 11.0
I was experiencing the fan/CPU issue and saw a few responses mentioning Malwarebytes. A few years ago, an Apple tech installed a trial of Malwarebytes on my machine to clean up some issues, and I uninstalled it along the way. But - after installing Big Sur, I had the fan/CPU issue and started looking around for the Malwarebytes program. In all the basic searches I couldn't find it, not in Applications, not in any normal search I tried. My tech support SigOt ran a bunch of terminal prompts that uncovered a number of files in this folder path: /System/Volumes/Data/Library/Application Support/Malwarebytes. I had to go in using this path to delete the remaining Malwarebytes files, but it has resolved the fan/CPU issue!
For me, it seemed to be an old version of Karabiner Elements. I updated it to the latest version so I could open the app's preferences (as I couldn't open the old version on Big Sur), then uninstalled it. Kernelmanagerd dropped from about 50% to 0%.
I have the same issues. I have move to trash malwerbyte and popcorn time but it is still happening. The only third party programs that I have are Horos (using it for viewing medical images, MRIs, CTs) and Tunnel blink (an app from my university).
what should I do? Thanks
I first tried to uninstall by dragging the Malwarebytes from the applications folder into trash, but the icon was still on the very top navigation bar. I went in there and did uninstall from that location and it finally worked. So, make sure you have it 100% uninstalled.
Luckily I found the problem: it was the software Malwarebytes. I uninstalled it and now everything works fine.
However thank you very much for the reply!
omg I have deleted the app and it. orks!!!! works why is. y key board is. ike this? do you. now any problem with this one? hhahaha
I have this as well - no antivirus or any of the software previously mentioned. If I force quit 'everything' the issue remains.
Thank you, thank you, thank you!! MB_MBAM_Protection.kext was my culprit.
Running on Big Sur version 11.2.1 (20D74) and had my CPU running at over 900%. After this screenshot was taken it jumped to over 1000%
Same thing here. My fan is constantly running since I uploaded Big Sur. Slowing down my computer. I called Apple Support and they had no suggestions other than to give it a couple days to see if it works itself out.
I'm experiencing same issue! uninstalled a malware program but kernelmanagerd
is still eating up my memory and the fan is running constantly, and getting very hot!!
can i delete kernelmanagerd?
HOW?
thank you...
This kernelmanaged the thing is eating up all of my battery and most definitely locking up the operating of the computer. So how do I remedy this issue it runs constantly in the fan runs high because the computer is getting very hot and it’s not good on my brand new computer!
Contact Apple ask for a senior advisor.
I was having all of these issues we uninstall all of this malware in cyber ghost and all this stuff and it was still having issues and we went in to select operating programs and we trashed some folders in three or four different applications then tested it and it worked perfect and then we went one by one and reinstalled malware bites and other programs include including bit defender and there is literally no issues with operating programs eating up valuable operating space.
For me, it was "DeepInstinct" app. Removing it stopped "kernelmanagerd" CPU consumption immediately.
I uninstalled Malwarebites & it resolved the problem
kernelmanagerd process causing high cpu usage & battery drain
