How to remove the NetAssistant malware

Some anti-malware programs classify NetAssistant.dll as a harmful extension to Internet Explorer: for example not-a-virus:AdWare.Win32.BHO.kqa (detected by Kaspersky), and Win32:Malware-gen (detected by Avast). Add-ons like this can display ads, slow down your computer and cause various other errors. If you can't remember installing the associated NetAssistant software, it's no surprise. In most cases, this kind of adware is installed on the side when you install a freeware product like a Youtube Downloader or a PDF Converter. In the following selection, you can read more about NetAssistant and how to get rid of it.

Click here to automatically remove the NetAssistant malware

NetAssistant.dll file information

The process known as NetAssistant or NetAssistant belongs to software NetAssistant or Toolbar or NetAssistant or Toolbar with by W3i ( or InstallX.

Description: NetAssistant.dll is not essential for Windows and will often cause problems. The NetAssistant.dll file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 253,048 bytes (26% of all occurrences), 371,320 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 E38FA08E-F56A-4169-ABF5-5C71E3C153A1. The program is not visible. The process can be uninstalled in the Control Panel. NetAssistant.dll is able to monitor web browsers. The file is not a Windows system file. It is a Verisign signed file. The file has a digital signature. NetAssistant.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 30% dangerous, however you should also read the user reviews.

Uninstalling this variant: If there are any problems with NetAssistant.dll, you can turn to the software developer [1][2], W3I, for advice, update the program to the latest version or safely remove the program using the uninstall program of NetAssistant or Toolbar (Control Panel ⇒ Uninstall a Program).

Recommended: Identify NetAssistant.dll related errors

Important: Some malware also uses the file name NetAssistant.dll, for example not-a-virus:AdWare.Win32.BHO.kqa (detected by Kaspersky), and Win32:Malware-gen (detected by Avast). Therefore, you should check the NetAssistant.dll process on your PC to see if it is a threat. If NetAssistant 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.


User Comments

It adds Yahoo Toolbar and other CRAP!

Summary: Average user rating of NetAssistant.dll: based on 2 votes with 1 user comment. One user thinks it's neither essential nor dangerous. One user thinks NetAssistant.dll is dangerous and recommends removing it.

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Best practices for resolving NetAssistant issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active NetAssistant process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the NetAssistant.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 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.

Other processes

NetAssistant.dll [all]