After a successful BIOS update to version A22, disable "Secure Boot" and enable "Legacy Option ROMs" if you are using older graphics cards or operating systems like Windows 7.
Before downloading anything, verify your current version to see if an update is actually needed. Check Version Windows + R , and look for BIOS Version/Date Locate Service Tag dell mih61r mb 100971 bios upd
(If you know your exact model)
A second PC, a USB flash drive (2GB or larger), and the BIOS .exe file. After a successful BIOS update to version A22,