The bios.sys file, which is termed as I/O Interface driver file, is one of the components of BIOS, ROM BIOS, or System BIOS, which is produced by BIOSTAR Group. BIOS, which stands for Basic Input/Output System, is a type of chip that is found on the motherboard or CPU with instructions included, along with setup guide regarding how the system operates or boots, and this application houses bios.sys, which is specifically designed to control or maintain the program while actively and continuously running in the system, and translates the programming associated with between the software and the hardware. The bios.sys file is actually one of the four main functions of BIOS, and is considered a low level driver, but very useful in providing some basic operational control of the hardware of the computer. Hence, bios.sys is not recommended to be stopped from running in the system.

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

A process usually a part of an installed application such as BIOSTAR I/O driver or BIOS, 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 bios.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 bios.sys, belongs to, in this case BIOSTAR I/O driver or BIOS