I recently noticed that Norton antivirus was using up to 300% of my CPU so I uninstalled it. Little did I know that it would completely shut off my internet for my Mac. I have used the uninstall tool and terminal to remove all of the excess files but still no help. i really need my mac for school so could anyone help me?
MacBook Pro 14″, macOS 13.5
I had this happen with another product. The solution was to remove its entry in Network Filters.
System Settings > Network > Filters
Remove anything related to Norton.
I had this happen with another product. The solution was to remove its entry in Network Filters.
System Settings > Network > Filters
Remove anything related to Norton.
Follow on
Any of the below should be removed as per Developers Instructions
2 - Third Party Security Software
This will include BitDefender ,
➡️ This will included Norton Antivirus ⬅️
Webroot ,
ESET ,
Avira ,
Read some of the posting and arrive at your own conclusions.
The The Built in Security is all that is required.
Mac app security enhancements - Apple Support (CA)
Uninstalling AntiVirus software is akin to Disarming a Time Bomb and it can go off at any second.
Your computer maybe reaping the Benefits of the AntiVirus Software has Infected on this computer.
Try to undo what has been done by this useless software may require remedial actions including Erase all Content and Setting
The above will leave the Operating System Un-Touched.
Thereafter to start from scratch and install all Required Application directly from the Apple Apps Store or Directly from the Developer.
If going this route - I suggest Not using Startup Assist to migrate things back as this will probably Re-Introduce the existing issue that existed when the TM Backup was made
Go >> System Setting and type Network as in image below
Look for Advance Wifi in the results
Click on it
As Pop Up should appear like in second image
If Norton 360 listed as a connection ?
If yes>> Click on the circle with 3 dots
Another Pop Up should appear with various Options and Remove Norton 360 from the list
Notation >> It will require the Admin Account Password of this computer to allow this change ( Third Image )
First image
Second image
Third Image
Had the same problem.
Had to use systemextensionsctl to remove symantec extension.
I do not remember how I did it, but I had to start in Safe mode>Terminal and disable csrutil before using the #systemextensionsctl list and uninstall command. You can Google systemextensionsctl or maybe somebody here can explain.
Norton doesn't show up on the list... what now?
As there appear to a Best Answer designation on this question.
This usually indicates the question is Solved and not further assistance is needed
Good luck with this computer issue
No internet after uninstalling Norton360
