The dac2w2k.sys process is also known as the Mylex disk array controller driver, and this file is bundled with the driver and firmware components that are packaged with supported Mylex chipsets. The dac2w2k.sys file is normally stored in the "drivers" folder of the System32 sub directory under the Windows directory of the system partition. The dac2w2k.sys process is a system file that contains program logic code, and this code is composed of resource directives, application settings and sequential lines of software-specific configurations that are required by associated applications to perform its intended functionalities. The content stored in the dac2w2k.sys file is implemented with program logic compilation specifications and data encoding standards that are normally used for files saved in the SYS format.

Most non-system processes that are running can be stopped because they are not involved in running your operating system. dac2w2k.sys. is used by Mylex Disk Array Controller Driver, If you shut down dac2w2k.sys, it will likely start again at a later time either after you restart your computer or after an application start. To stop dac2w2k.sys, permanently you need to uninstall the application that runs this process which in this case is Mylex Disk Array Controller 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 dac2w2k.sys

A process usually a part of an installed application such as Mylex Disk Array Controller 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 dac2w2k.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 dac2w2k.sys, belongs to, in this case Mylex Disk Array Controller Driver