The acpi.sys process is a system file that is readily available to the user’s computer system upon purchased as a system driver or application and is typically pre-installed within the system. This program is likely to appear as a kind of a service on a user’s computer system so it cannot be found within the computer system’s BHO list or startup list, etc. The disk location of the file is listed to guarantee that the acpi.sys process is not a spyware or virus. It is needed for the process to be verified so that it is placed within the correct file and disk location. The file is created by Microsoft Corporation and it is a component of Microsoft Windows operating system. It is usually associated with the computer’s central processing unit (CPU) and different internal functions. The acpi.sys file is considered to be safe and not a virus. This program is Windows driver.

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

A process usually a part of an installed application such as Microsoft ACPI 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 acpi.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 acpi.sys, belongs to, in this case Microsoft ACPI Driver