Press Windows + R, type `msinfo32`, and check `BIOS Version/Date`
Open Command Prompt and run `wmic bios get smbiosbiosversion`
Open Command Prompt and run `systeminfo` and look for `BIOS Version`
Enter BIOS/UEFI setup during startup and check the version on the main screen
Check the BIOS version in your computer manufacturer’s support or diagnostics utility
On Linux, run `sudo dmidecode -s bios-version`
On macOS, check `About This Mac` and `System Report` for firmware details