nisserv.exe
nisserv.exe
Process name: Norton Internet Security Service
Application using this process: Norton Firewall
Recommended: Check your system for nisserv.exe problems
What is nisserv.exe doing on my computer?
nisserv.exe is vital part of the Norton Firewall software and runs transparently in the background. This process should not be removed to ensure that your system is secure.
Non-system processes like nisserv.exe originate from software you installed on your system. Since most applications store data on your hard disk and in your system's registry, it is likely that your computer has suffered fragmentation and accumulated invalid entries which can affect your PC's performance.
In Windows Task Manager, you can see what CPU, memory, disk and network utilization is causing the Norton Internet Security Service process. To access the Task Manager, hold down the Ctrl + Shift + Esc keys at the same time. These three buttons are located on the far left of your keyboard.
The nisserv.exe is an executable file on your computer's hard drive. This file contains machine code. If you start the software Norton Firewall on your PC, the commands contained in nisserv.exe will be executed on your PC. For this purpose, the file is loaded into the main memory (RAM) and runs there as a Norton Internet Security Service process (also called a task).
Is nisserv.exe harmful?
This process is considered safe. It is unlikely to pose any harm to your system.
Can I stop or remove nisserv.exe?
Many 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 Firewall'. This is an application created by 'Symantec Corporation'.
If you no longer use Norton Firewall, you can permanently remove this software and thus nisserv.exe from your PC. To do this, press the Windows key + R at the same time and then type 'appwiz.cpl'. Then find Norton Firewall in the list of installed programs and uninstall this application.
Is nisserv.exe CPU intensive?
This process is not considered CPU intensive. However, running too many processes on your system may affect your PC’s performance. To reduce system overload, you can use the Microsoft System Configuration Utility (MSConfig) or the Windows Task Manager to manually find and disable processes that launch upon start-up.
Use the Windows Resource Monitor to find out which processes and applications write/read the most on the hard drive, send the most data to the Internet, or use the most memory. To access the Resource Monitor, press the key combination Windows key + R and then enter 'resmon'.
Why is nisserv.exe giving me errors?
Most nisserv issues are caused by the application executing the process. The surest way to fix these errors is to update or uninstall this application. Therefore, please search the Symantec Corporation website for the latest Norton Firewall update.
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