This package contains the BIOS update for Dell Precision 7520 and 7720 systems that run Windows and DOS operating systems. BIOS is a firmware that is embedded on a small memory chip on the computer's system board. It controls the keyboard, monitor, disk drives and other devices. This update addresses the Intel security advisory INTEL-SA-00191. The security advisory is an official statement when a product is impacted by a security vulnerability and a remedy is available.