I have faced the problem several times, even after changing the Norton antivirus program I was using. And I figured out it's more of a system problem than your antivirus. However, the Norton antivirus software could also cause this problem in the system. I usually use some basic troubleshooting methods, and they help me resolve the issue. (1) Make sure the Norton antivirus and PC are running on the latest version. (2) Using the system in safe mode. (3) Checking the compatibility of the system and antivirus program. (4) Reinstalling the Norton antivirus product you are using. (5) Removing the cache from your device and freeing up some space. (6) Turn off any other antivirus on your device. (7) If necessary, connect your antivirus product to the customer support team.