BIOS Not Applicable Windows 10, 64-bit Windows 7, 64-bit Windows 8, 64-bit Windows 8.1, 64-bit Windows 10, 32-bit Windows 7, 32-bit
This package contains the BIOS update for Dell Inspiron 3521/3721/5521/5721 and Vostro 2521 that runs 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 package updates the CPU microcode to address security advisory Intel Security Advisory INTEL-SA-00115 (CVE-2018-3639 & CVE-2018-3640).