What is HPNetworkCheckPlugin.dll?

The genuine HPNetworkCheckPlugin.dll file is a software component of HP Support Assistant by Hewlett-Packard.
HP Support Assistant is an application that provides troubleshooting, contextual support, and program updates for desktops and laptops manufactured by HP. HPNetworkCheckPlugin.dll is a dynamic link library that is part of the Network Check Plugin, a module that checks for a working Internet connection while using the HP Support Assistant. This is not an essential Windows process and can be disabled if known to create problems. HP Support Assistant is a tool designed for home and business users that features self-help support to resolve problems and issues that might occur with the system. Support Assistant also keeps computers updated and maintained, and provides access to services and warranty, technical specifications, accessories and peripherals, and support resources. HP Support Assistant is available for the Microsoft Windows platform. Hewlett-Packard was founded by Bill Hewlett and Dave Packard, two Stanford graduates in electrical engineering, in 1939. It started out in Packard's Garage in Palo Alto, California. For the major part of the 20th century, the company focused on a wide range of electronic products but slowly grew out into producing computing-specific hardware from the 1970s onwards. Today, it provides hardware, software and services to consumers and various types of businesses and large corporations. Hewlett-Packard is headquartered in Palo Alto, California, USA.

HPNetworkCheckPlugin stands for HP Network Check Browser Plug-in

HPNetworkCheckPlugin.dll is a browser extension for Internet Explorer. This add-on enables several additional functions for Internet Explorer. You can disable it through the Extras menu (key combination Alt + X) under Manage Add-ons. The following paragraph provides more information about HP Network Check IE Plug-in.

Click to Run a Free Scan for HPNetworkCheckPlugin.dll related errors

HPNetworkCheckPlugin.dll file information

The process known as HP Network Check IE Plug-in or HP Support Assistant belongs to software HP Support Assistant or HP Network Check or HPAsset component for HP Active Support or ActiveCheck component for HP Active Support by HP ( or Hewlett-Packard ( or Hewlett-Packard Company (

Description: HPNetworkCheckPlugin.dll is not essential for the Windows OS and causes relatively few problems. HPNetworkCheckPlugin.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 416,320 bytes (41% of all occurrences), 286,520 bytes and 6 more variants. 
This .dll file is a Browser Helper Object (BHO) that runs automatically every time you start your web browser. BHOs are not stopped by personal firewalls, because they are identified by the firewall as part of the browser itself. BHOs are often used by adware and spyware. IDs used by this BHO include E76FD755-C1BA-4DCB-9F13-99BD91223ADE. The program is not visible. HPNetworkCheckPlugin.dll is able to change the behavior of, or monitor Internet Explorer. The file has a digital signature. The file is not a Windows core file. Therefore the technical security rating is 42% dangerous.

Uninstalling this variant: You have the option to do the following:
  • use the software publisher's support site [1][2]
  • uninstall HP Support Assistant or HP Mouse Suite software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 10/8/7)

Recommended: Identify HPNetworkCheckPlugin.dll related errors

Important: Some malware camouflages itself as HPNetworkCheckPlugin.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the HPNetworkCheckPlugin.dll process on your PC to see if it is a threat. If HP Network Check IE Plug-in has changed your browser's search engine and start page, you can recover your browser's default settings as follows:

Reset default browser settings for Internet-Explorer ▾
  1. In Internet Explorer, press the key combination Alt + X to open the Tools menu.
  2. Click Internet options.
  3. Click the Advanced tab.
  4. Click the Reset... button.
  5. Enable the Delete personal settings option.
This will reset your Internet Explorer to its default settings. Your browser will start with the familiar start page and search engine—without popups, ads, cookies, but all browser add-ons are deleted too [1]. Make cleaning up your browser and your computer simpler and safer with Security Task Manager.


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Best practices for resolving HPNetworkCheckPlugin issues

The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active HPNetworkCheckPlugin process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the HPNetworkCheckPlugin.dll 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 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

HPNetworkCheckPlugin.dll [all]