The file nmain.exe is known as the Norton Antivirus, which is a component of the software Norton Internet Security Suite. This software package provides protection to the computer against Internet-bound viruses, including spyware, worm, spam, identity theft, and phishing. Maximum protection of users is assured by the core technology of this system, which uses multiple layers of security that work together to proactively block attacks and remove threats. It has the capability to scan a typical Windows system and hard drive within one minute, and the antivirus performance has minimal impact during gaming, presentations, and, movie playback. The anti-phishing tools prevent users from visiting fraudulent websites, while Norton Safe Web identifies unsafe websites in search results using the search engine. The system installs a 2-way firewall that safeguards the computer against hackers. The 2013 version of the Norton Internet Security Suite has an interactive panel that makes the suite a clearinghouse for information for Norton's Web-based services.

Most non-system processes that are running can be stopped because they are not involved in running your operating system. nmain.exe. is used by Norton Internet Security Suite, If you shut down nmain.exe, it will likely start again at a later time either after you restart your computer or after an application start. To stop nmain.exe, permanently you need to uninstall the application that runs this process which in this case is Norton Internet Security Suite, from your system.

After uninstalling applications it is a good idea to scan you Windows registry for any left over traces of applications. Registry Reviver by ReviverSoft is a great tool for doing this.

The ReviverSoft experts have not yet reviewed nmain.exe

A process usually a part of an installed application such as Norton Internet Security Suite, or your operating system that is responsible for running in functions of that application. Some application require that they have processes running all the time so they can do things such as check for updates or notify you when you get an instant message. Some poorly written applications have many processes that run that may not be required and take up valuable processing power within your computer.

We have not received any complaint about this process having higher than normal impact on PC performance. If you have had bad experiences with it please let us know in a comment below and we will investigate it further.

The first thing you should do if nmain.exe. is causing errors on your computer is to run a Windows registry scan with Registry Reviver If you are still seeing errors after this you should uninstall the program that nmain.exe, belongs to, in this case Norton Internet Security Suite