The system mf.sys, described as a Multifunction Enumerator, is a Windows driver. It is a digitally signed compressed file, and is one of the core system files in the operating system. A driver is small software that tells the computer operating system how to communicate with the hardware components and other connected devices. A Multifunction Enumerator or device contains more than one function, for example, it can be a driver for combined functions, and its functionality is similar to multifunction modem and network cards. To function effectively, the functions contained in the multifunction device should be independent from each other, start-order dependencies must not be present, and the resource requirements for one function must not be expressed in terms of the resources of another function. By default, mf.sys device driver is installed in earlier version of Windows but is not installed in Windows Vista.

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

A process usually a part of an installed application such as Multifunction Enumerator, 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 mf.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 mf.sys, belongs to, in this case Multifunction Enumerator