The next time you update your PC or try to troubleshoot compatibility problems, you'll may need to know your current BIOS. You could reboot the computer, but it's much easier to use the Windows command line utility.
In the command prompt window type:
wmic bios get smbiosbiosversion
You'll get back the computer's BIOS version. It's that easy, no reboot necessary!
Note that if you type the command and get a "not recognised" error, you'll need to navigate to the following directory:
X:\windows\system32\wbem, where "X" is the drive letter of your Windows install.