How to remove the IgfxSys virus

Most antivirus programs identify IgfxSys.dll as malware—such as Symantec identifies it as Adware.Gen, and Kaspersky identifies it as not-a-virus:AdWare.Win32.BHO.knv.

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.

Click to Run a Free Virus Scan for the IgfxSys.dll malware

IgfxSys.dll file information

There is relatively little known about this process along the lines of the following technical specificaitons.

Description: IgfxSys.dll is not essential for Windows and will often cause problems. The file IgfxSys.dll is located in a subfolder of the user's profile folder. Known file sizes on Windows 10/8/7/XP are 186,368 bytes (66% of all occurrences) or 59,392 bytes. 
The program has a visible window. There is no description of the program. The application starts when Windows starts (see Registry key: Run, MACHINE\Run). IgfxSys.dll is not a Windows core file. Therefore the technical security rating is 36% dangerous.

Recommended: Identify IgfxSys.dll related errors

If IgfxSys.dll is located in a subfolder of C:\Windows, the security rating is 36% dangerous. The file size is 180,224 bytes. The program has a visible window. There is no description of the program. The program starts upon Windows startup (see Registry key: Run, MACHINE\Run). The file is not a Windows system file.

Important: You should check the IgfxSys.dll process on your PC to see if it is a threat. If IgfxSys.dll 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 IgfxSys issues

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

IgfxSys.dll [all]