The files needed to run an operating system.

Files that the computer needs in order to operate and that must be loaded into the computer after it is turned on.

The files that run when the computer starts up, usually containing essential instructions to make installed hardware and software to run properly. The autoexec. bat and config. sys files are system files.

Files used by Windows to load, configure, and run the operating system. Generally, system files must never be deleted or moved.

The set of files on a system that do not belong to end-users, which govern the functionality of the system. System files have a great impact on the security of the system.