The hp4200c.sys file is a process called HP4200C WDM Driver used on Windows 2000 that is created by Hewlett-Packard. This process is a driver. It is not a visible process. It is not a system process. A driver is a computer application that controls or operates a certain device that is connected to the computer. It communicates with the device usually by means of a communications subsystem or a computer bus that is connected to the hardware. It directs commands to the device when a program sends instructions for a task to be done. It will call for routines or procedures from the program once the device sends back data. A driver is operating-system-specific and dependent on hardware. It provides interrupt handling for significant time-dependent asynchronous hardware interface. It acts as translator between the operating system or application and the hardware device to simplify programming.

Most non-system processes that are running can be stopped because they are not involved in running your operating system. hp4200c.sys. is used by HP4200C WDM Driver, If you shut down hp4200c.sys, it will likely start again at a later time either after you restart your computer or after an application start. To stop hp4200c.sys, permanently you need to uninstall the application that runs this process which in this case is HP4200C WDM Driver, 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 hp4200c.sys

A process usually a part of an installed application such as HP4200C WDM Driver, 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 hp4200c.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 hp4200c.sys, belongs to, in this case HP4200C WDM Driver