Norton's various scanning options check your computer and look for viruses and malicious files that harm your System. But sometimes, an error may pop up during the scan, preventing Norton from scanning your System for viruses and malware. An incomplete scan can be potentially harmful because the viruses and malware go undetected. Many factors can lead to Norton's scan failure. Fortunately, there are various methods to fix this issue.
Another security product or failed installation: Another security program can interfere with Norton Antivirus and prevent it from scanning.