How do I check the current BIOS version on my HP Z440 Workstation?

During system startup, turn on the workstation and press Esc, then press F10 to enter the F10 Setup utility and navigate to File > System Information to find the BIOS version and date. In Windows 7, you can also go to Start > All Programs > Accessories > System Tools > System Information and find the BIOS Version/Date line in the right pane. Compare the version found against those listed at http://www.hp.com/go/workstationsupport. (Page 12)