The oz776.sys file is a Windows process that runs in the background, which is referred to as O2Micro USB CCID SmartCard Reader, a component that is bundled within O2Micro USB Smart Card Reader, also known as O2Micro OZ776 USB CCID Smartcard Reader or OZ776 SCR Driver software, a product made by O2Micro. O2Micro OZ776 USB CCID Smartcard Reader is a part of a driver software that is used in SmartCardBus program, which consists of a Smart Card Reader or SCR, and a CardBus controller within a single IC. Most O2Micro SmartCardBus programs have logo certification that indicates its compatibility with Microsoft Windows operating systems, which include both early and later versions of Windows OS, such as Windows 2000, Windows 2003, and Windows XP, as well as compliant with Microsoft PC/SC, ISO 7816-1, ISO 7816-2, and ISO 7816-3 electrical specifications, as well as standard protocols. The oz776.sys file is an essential module that needs to run in the background of the system, so the functions of the software associated with it are enabled.

Most non-system processes that are running can be stopped because they are not involved in running your operating system. oz776.sys. is used by O2Micro USB Smart Card Reader, If you shut down oz776.sys, it will likely start again at a later time either after you restart your computer or after an application start. To stop oz776.sys, permanently you need to uninstall the application that runs this process which in this case is O2Micro USB Smart Card Reader, 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 oz776.sys

A process usually a part of an installed application such as O2Micro USB Smart Card Reader, 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 oz776.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 oz776.sys, belongs to, in this case O2Micro USB Smart Card Reader