The process file, avgmfx86.sys is a Windows driver, which is a minute software program that is identified as AVG Minifilter Resident Anti-Virus Shield or AVG Resident Shield Minifilter Driver. The product name, AVG Internet Security is part of the software AVG On-access Scanner Minifilter Driver (version x86) or AVG Free On-access Scanner Minifilter Driver (v x86) as created by Grisoft, s.r.o. or AVG Technologies CZ, s.r.o.. The process file, avgmfx86.sys permits the communication between the hardware or connected devices with the computer since it has direct access to the internals of the hardware and the operating system. It does not feature a visible window, is not CPU intensive and is not considered as a Windows system file. Although it is a Verisign signed and a compressed file, the process file avgmfx86.sys can end and begin from Services in the Control Panel or by other programs. The process file is found to be located in the folder C:\Windows\System 32\drivers, with a file size on Windows 7/XP of 26,824 bytes at 44% on all incidences, 27,784 bytes, 26,184 bytes, 27,656 bytes or 26,952 bytes.

Most non-system processes that are running can be stopped because they are not involved in running your operating system. avgmfx86.sys. is used by AVG Resident Shield Minifilter , If you shut down avgmfx86.sys, it will likely start again at a later time either after you restart your computer or after an application start. To stop avgmfx86.sys, permanently you need to uninstall the application that runs this process which in this case is AVG Resident Shield Minifilter , from your system.

After uninstalling applications it is a good idea to scan you Windows registry for any left over traces of applications. Registry Reviver by ReviverSoft is a great tool for doing this.

The ReviverSoft experts have not yet reviewed avgmfx86.sys

A process usually a part of an installed application such as AVG Resident Shield Minifilter , or your operating system that is responsible for running in functions of that application. Some application require that they have processes running all the time so they can do things such as check for updates or notify you when you get an instant message. Some poorly written applications have many processes that run that may not be required and take up valuable processing power within your computer.

We have not received any complaint about this process having higher than normal impact on PC performance. If you have had bad experiences with it please let us know in a comment below and we will investigate it further.

The first thing you should do if avgmfx86.sys. is causing errors on your computer is to run a Windows registry scan with Registry Reviver If you are still seeing errors after this you should uninstall the program that avgmfx86.sys, belongs to, in this case AVG Resident Shield Minifilter