Most antivirus programs identify netprotocol.exe as malware—for instance BitDefender identifies it as Trojan.Generic.4879366, and F-Secure identifies it as Trojan.Generic.4879366.
The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.
The process known as Network List Manager
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by Microsoft Windows.
Description: Netprotocol.exe is not essential for Windows and will often cause problems. Netprotocol.exe is located in a subfolder of the user's profile folder.
Known file sizes on Windows 10/8/7/XP are 70,144 bytes (11% of all occurrences), 70,232 bytes and 20 more variants.
The file is not a Windows system file. The program is not visible. The process starts when Windows starts (see Registry key: Run, MACHINE\Run, win.ini). It is a file with no information about its developer. Netprotocol.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 67% dangerous.
Recommended: Identify netprotocol.exe related errors
If netprotocol.exe is located in the C:\Windows\System32 folder, the security rating is 100% dangerous. The file size is 69,632 bytes (50% of all occurrences) or 71,680 bytes. Netprotocol.exe is a file with no information about its developer. The file is an unknown file in the Windows folder. It can change the behavior of other programs or manipulate other programs. The program has no visible window. The process starts upon Windows startup (see Registry key: Run, MACHINE\Run, win.ini). The process listens for or sends data on open ports to a LAN or the Internet. Netprotocol.exe is not a Windows system file. Netprotocol.exe is able to record keyboard and mouse inputs.
If netprotocol.exe is located in a subfolder of "C:\Program Files", the security rating is 64% dangerous. The file size is 54,272 bytes. The program has no file description. The program is not visible. The process is loaded during the Windows boot process (see Registry key: Run, MACHINE\Run, win.ini). Netprotocol.exe is not a Windows system file.
Important: You should check the netprotocol.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.
The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active netprotocol process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the netprotocol.exe on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.
A clean and tidy computer is the key requirement for avoiding PC trouble. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.
Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.