The nisserv.exe process is deployed as one of the executable component files of the Norton Internet Security software, which is an application classified as a system security tool that was designed with a set of functionalities for monitoring and protecting the system against Internet threats, viruses, backdoor rootkits, Trojans, worms, spyware components and other malicious applications that can penetrate the user's system via exploited TCP/IP network ports without his or her consent. The nisserv.exe process is also packaged with the Symantec Client Firewall program, which is a network firewall application that can be installed in client computers connected to the network. The nisserv.exe process is associated with certain application-specific modules that are used and referenced by these Symantec applications in order to correctly implement its features into the system as requested by the user.

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

A process usually a part of an installed application such as Norton Internet Security and Symantec Client Firewall, 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 nisserv.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 nisserv.exe, belongs to, in this case Norton Internet Security and Symantec Client Firewall