What Is Root Access/Root Privilege?

Root access (or root privilege, superuser access) is the highest permission level on a computer system. The privilege grants administrative control and unrestricted permissions to install, change, or remove files and settings.

Root access is a typical term for Unix-like systems, whereas the Windows parallel is admin or administrator. The privilege enables complete system maintenance and customization but should be used cautiously. Misuse or mistakes may cause irreversible changes to the system.